Well, the features list page lists 138 features. But using that as a base and adding in the "missing" features of equivalent size, this is the list I have currently come up with. How many of the features have you never known were there? or known of and never used? and what have I missed?
Features as defined by Faithlife augmented by MJ
1. Factbook
2. Factbook entry: Belief
3. Factbook entry: Bible Reference
4. Factbook entry: Biblical Artifact
5. Factbook entry: Biblical Prophecy
6. Factbook entry: Biblical Thing
7. Factbook entry: Church History Theme
8. Factbook entry: Concept
9. Factbook entry: Counseling Theme
10. Factbook entry: Cultural Ontology
11. Factbook entry: Day
12. Factbook entry: Event
13. Factbook entry: Lemma
14. Factbook entry: List
15. Factbook entry: Measure
16. Factbook entry: Person
17. Factbook entry: Place
18. Factbook entry: Preaching Theme
19. Factbook entry: Religious Group
20. Factbook entry: Resource
21. Factbook entry: Sense
22. Factbook entry: Systematic Theology
23. Factbook entry: Writing
24. Factbook section: Authors
25. Factbook section: Bible Book Guide in 8 parts
26. Factbook section: Biblical Senses
27. Factbook section: Books From Your Library
28. Factbook section: Bookstore
29. Factbook section: Cultural Concepts
30. Factbook section: Daily Devotionals
31. Factbook section: Dictionaries
32. Factbook section: Events
33. Factbook section: Events: Timeline
34. Factbook section: Factbook Header
35. Factbook section: Factbook tags
36. Factbook section: Journals
37. Factbook section: Key Article
38. Factbook section: Key passages
39. Factbook section: Media
40. Factbook section: Monographs
41. Factbook section: One this day
42. Factbook section: Personal Letters
43. Factbook section: Preaching Resources
44. Factbook section: Recommended Reading
45. Factbook section: Referred to As
46. Factbook section: Saints
47. Factbook section: See also
48. Factbook section: Sermons
49. Factbook section: Systematic Theologies
50. Factbook section: Today in Christian History
51. Factbook section: Works
52. Factbook Tags (aka Community tags)
53. Guide (general)
54. Guide Editor Builder
55. Guide: Bible reference: Ancient Literature
56. Guide: Bible reference: Apparatuses
57. Guide: Bible reference: Atlas (see Tool: Atlas)
58. Guide: Bible reference: Biblical Events
59. Guide: Bible reference: Biblical People
60. Guide: Bible reference: Biblical Places
61. Guide: Bible reference: Biblical Theologies
62. Guide: Bible reference: Biblical Things
63. Guide: Bible reference: Bookstore
64. Guide: Bible reference: Catholic Topical Index
65. Guide: Bible reference: Collections (see Tool: Collections)
66. Guide: Bible reference: Collections: Catechisms
67. Guide: Bible reference: Collections: Church Documents
68. Guide: Bible reference: Collections: Church Fathers
69. Guide: Bible reference: Commentaries
70. Guide: Bible reference: Compare versions (see Tool: Compare version)
71. Guide: Bible reference: Concordance Guide Section
72. Guide: Bible reference: Confessional Documents
73. Guide: Bible reference: Courses (see Tool: Courses)
74. Guide: Bible reference: Cross References
75. Guide: Bible reference: Cultural Concepts
76. Guide: Bible reference: Faithlife Media (Logos only) (see Tool: Faithlife Media)
77. Guide: Bible reference: Faithlife Music
78. Guide: Bible reference: Faithlife Sermons (Logos only)
79. Guide: Bible reference: Figurative Language
80. Guide: Bible reference: Grammars
81. Guide: Bible reference: Grammatical Constructions
82. Guide: Bible reference: Handout (deprecated)
83. Guide: Bible reference: IgniterMedia.com (Logos only)
84. Guide: Bible reference: Illustrations
85. Guide: Bible reference: Important Passages
86. Guide: Bible reference: Important Words
87. Guide: Bible reference: Interactives (see Tool: Interactive)
88. Guide: Bible reference: Interesting Words
89. Guide: Bible reference: Journals Section
90. Guide: Bible reference: Lemma in Passage
91. Guide: Bible reference: Literary Typing
92. Guide: Bible reference: Liturgy
93. Guide: Bible reference: Media collections (Logos media)
94. Guide: Bible reference: Media resources (Logos media)
95. Guide: Bible reference: Music
96. Guide: Bible reference: Outlines (see Tool: Interactive: Outline Browser)
97. Guide: Bible reference: Parallel Passages
98. Guide: Bible reference: Personal Letters
99. Guide: Bible reference: Related Verses
100. Guide: Bible reference: Sermon Outlines
101. Guide: Bible reference: SermonAudio.com (Logos only)
102. Guide: Bible reference: Sermons
103. Guide: Bible reference: Systematic Theology
104. Guide: Bible reference: Textual Variants
105. Guide: Bible reference: Thematic Outlines
106. Guide: Bible reference: Theme
107. Guide: Bible reference: Topics
108. Guide: Bible reference: Visualizations
109. Guide: Bible reference: Word by Word
110. Guide: Bible reference: Your Content
111. Guide: Bible Word Study Guide
112. Guide: Bible word: (Septuagint) Translation
113. Guide: Bible word: (Word) Senses
114. Guide: Bible word: Case Frames [and Semantic Roles]
115. Guide: Bible word: Clause Participants
116. Guide: Bible word: Example Uses
117. Guide: Bible word: Grammatical Relationships
118. Guide: Bible word: Greek Words
119. Guide: Bible word: Hebrew Words
120. Guide: Bible word: Lemma
121. Guide: Bible word: Lemma in Passages
122. Guide: Bible word: Phrases
123. Guide: Bible word: Preposition Use
124. Guide: Bible word: Root
125. Guide: Bible word: Textual Search
126. Guide: Bible word: Topic
127. Guide: Bible word: Translation (Greek) (see Guide: Bible word: Septuagint translation)
128. Guide: Bible word: Translation (Hebrew) (see Guide: Bible word: Septuagint translation)
129. Guide: Counseling Guide
130. Guide: Counseling topic: Books from Your Library
131. Guide: Counseling topic: Bookstore
132. Guide: Counseling topic: Counseling Topics
133. Guide: Counseling topic: Dictionaries
134. Guide: Counseling topic: Journals
135. Guide: Counseling topic: Lectures
136. Guide: Counseling topic: Monographs
137. Guide: Counseling topic: Passages
138. Guide: Counseling topic: Related Counseling Topics
139. Guide: Counseling topic: Web Related Resources
140. Guide: Exegetical Guide (see Guide: Bible reference)
141. Guide: Passage Guide (see Guide: Bible reference)
142. Guide: Preaching theme: Bookstore
143. Guide: Preaching theme: Collections
144. Guide: Preaching theme: Faithlife Music
145. Guide: Preaching theme: Faithlife Sermons
146. Guide: Preaching theme: Interactives
147. Guide: Preaching theme: Journals
148. Guide: Preaching theme: Media Collections
149. Guide: Preaching theme: Media Resources
150. Guide: Preaching theme: Passages
151. Guide: Preaching theme: Personal Letters
152. Guide: Preaching theme: Preaching Resources
153. Guide: Preaching theme: Sermon Outlines
154. Guide: Preaching theme: Sermons
155. Guide: Preaching theme: Thematic Outlines
156. Guide: Preaching theme: Theme
157. Guide: Sermon Starter Guide (also see: Guide: Bible reference)
158. Guide: Theological topic: Recommended Reading
159. Guide: Theological topic: Systematic Theologies
160. Guide: Theological topic: Theologically Related Passages
161. Guide: Theological topic: Topic
162. Guide: Theology Guide
163. Guide: Topic Guide
164. Guide: Topic: Atlas
165. Guide: Topic: Biblical Events
166. Guide: Topic: Biblical People
167. Guide: Topic: Biblical Places
168. Guide: Topic: Biblical Things
169. Guide: Topic: Bookstore
170. Guide: Topic: Catholic Topical Index
171. Guide: Topic: Collections
172. Guide: Topic: Faithlife sermons
173. Guide: Topic: Illustrations
174. Guide: Topic: Interactives
175. Guide: Topic: Journals
176. Guide: Topic: Media Collections
177. Guide: Topic: Media Resources
178. Guide: Topic: Personal Letters
179. Guide: Topic: Related verse
180. Guide: Topic: Sermon Outlines
181. Guide: Topic: Sermons
182. Guide: Topic: Topic
183. Guide: Topic: Topics.logos.com
184. Guide-Workflow: Workflow Editor
185. Guide-Workflow: Workflows
186. Home Page
187. Home Page: Application Menu
188. Home Page: Layout
189. Label: Biblical annotation dataset: Accent
190. Label: Biblical annotation dataset: Altar
191. Label: Biblical annotation dataset: Battle
192. Label: Biblical annotation dataset: Benediction
193. Label: Biblical annotation dataset: Bullinger’s Figures of Speech
194. Label: Biblical annotation dataset: Burial
195. Label: Biblical annotation dataset: Cantillation
196. Label: Biblical annotation dataset: Commands
197. Label: Biblical annotation dataset: Covenant
198. Label: Biblical annotation dataset: Daily Event
199. Label: Biblical annotation dataset: Famine
200. Label: Biblical annotation dataset: Fast
201. Label: Biblical annotation dataset: Figurative Language
202. Label: Biblical annotation dataset: Greek Syllables Dataset
203. Label: Biblical annotation dataset: Killing
204. Label: Biblical annotation dataset: Longacre Genre Dataset
205. Label: Biblical annotation dataset: Marriage
206. Label: Biblical annotation dataset: Meal
207. Label: Biblical annotation dataset: Messianic Prophecy
208. Label: Biblical annotation dataset: Oaths and Vows
209. Label: Biblical annotation dataset: Parable
210. Label: Biblical annotation dataset: Prayer
211. Label: Biblical annotation dataset: Prepositional Phrase
212. Label: Biblical annotation dataset: Promise
213. Label: Biblical annotation dataset: Prophets, Priests, Regents, and Judges
214. Label: Biblical annotation dataset: Question
215. Label: Biblical annotation dataset: Song
216. Label: Biblical annotation dataset: Source Criticism (Eisfeldt)
217. Label: Biblical annotation dataset: Supernatural Being (Angels, Demons, and Deities)
218. Label: Biblical annotation dataset: Theophanies
219. Label: Biblical annotation dataset: Turning Point
220. Label: Biblical annotation dataset: Visions
221. Label: Biblical annotation dataset: Wordplay
222. Label: Church History Themes
223. Label: Deuterocanon Addressee Dataset
224. Label: Interactive dataset label: Intertext Labels
225. Label: Interactive dataset label: Measure
226. Label: Interactive dataset label: Miracles of the Bible
227. Label: Interactive dataset label: Mitzvoth
228. Label: Interactive dataset label: Proverbs Browser Dataset
229. Label: Interactive dataset label: Psalms Explorer Dataset
230. Label: Interactive dataset label: Sacrifices
231. Label: Interactive dataset label: Speaking to God
232. Label: Other datasets: Bible Books Supplemental Dataset
233. Label: Other datasets: Bible Questions and Answers
234. Label: Other datasets: Semantic feature: Propositional Outlines (NT)
235. Label: Other datasets: Semantic feature: Propositional Outlines (OT)
236. Label: Other datasets: Speech Acts
237. Label: Resource Filter: Addressee
238. Label: Resource Filter: Speaker
239. Label: Resource label: Bible outline
240. Label: Resource label: Journal Article
241. Label: Resource label: Lectionary Reading
242. Label: Resource label: Personal Letter
243. Label: Resource label: Preaching Theme
244. Label: Resource label: Sermon
245. Label: Resource label: Sermon Outline
246. Library
247. Library: Lexham Theological Wordbook
248. Library: Lexicon Reformatting Dataset
249. Library: Prioritized Resources
250. Library: Standard reference scheme: Strong’s number
251. Library: Standard reference scheme: G-K number
252. Library: Standard reference scheme: Lowe-Nida semantic domain
253. Library: Talmud
254. Resource Panel
255. Resource panel: Auto Translation
256. Resource panel: Inline Search (see Search: Inline Search)
257. Resource panel: Link Sets
258. Resource panel: Menu: Context Menu
259. Resource panel: Menu: Panel Menu
260. Resource panel: Menu: Selection Menu
261. Resource Panel: Multiview Resources
262. Resource panel: Parallel and Equivalent Resources
263. Resource Panel: Read Aloud
264. Resource Panel: Reader’s Edition Interlinear
265. Resource Panel: Reverse Interlinears
266. Resource Panel: Text Selection Cards
267. Resource panel: Visual filters: Documents (Community Notes, Notes and Highlights, Notes and Highlights (Corresponding), Passage Lists, Reading Plans, Visual Filters)
268. Resource panel: Visual filters: Reference (Media, Factbook)
269. Resource panel: Visual filters: Resource
270. Search
271. Search: All Search
272. Search: Bible Search
273. Search: Books Search
274. Search: Bookstore Search
275. Search: Clause Search
276. Search: Documents Search
277. Search: Factbook Search
278. Search: Factbook Tags Search
279. Search: Inline Search
280. Search: Maps Search
281. Search: Media Search
282. Search: Morph Query Builder
283. Search: Morph Search
284. Search: Syntax Search
285. Search: Tool: Charts Tool
286. Tool: Content: Canvas
287. Tool: Content: Charts (See Search: Tool: Charts tool)
288. Tool: Content: Guide Editor (See Guide Editor Builder)
289. Tool: Content: Highlighting
290. Tool: Content: Homily: Preaching Mode
291. Tool: Content: Homily: Sermon Builder
292. Tool: Content: Homily: Sermon Manager
293. Tool: Content: Media Tool with Visual Copy
294. Tool: Content: Notebooks
295. Tool: Content: Notes
296. Tool: Content: Self Tests
297. Tool: Content: Sentence Diagrammer
298. Tool: Content: Workflow editor (See Guide-Workflow: Workflow Editor)
299. Tool: Draw on Screen
300. Tool: Interactive:
301. Tool: Interactive: An Empty Tomb
302. Tool: Interactive: Ancient Inscriptions
303. Tool: Interactive: Before and After: Biblical Sites
304. Tool: Interactive: Bible Books Explorer
305. Tool: Interactive: Bible Outline Browser
306. Tool: Interactive: Bible People Visual Timelines
307. Tool: Interactive: Biblical Event navigator
308. Tool: Interactive: Canon Comparison Tool
309. Tool: Interactive: Commandments of the Law
310. Tool: Interactive: Counting the Ten Commandments
311. Tool: Interactive: Days of Creation
312. Tool: Interactive: Exploring Biblical Manuscripts: Hebrew
313. Tool: Interactive: Exploring Biblical Manuscripts: New Testament
314. Tool: Interactive: Feasts and Sacrifices
315. Tool: Interactive: Greek Alphabet Tutor
316. Tool: Interactive: Hebrew Alphabet Tutor
317. Tool: Interactive: Hebrew Cantillations
318. Tool: Interactive: Interactive Infographics from the Faithlife Study Bible
319. Tool: Interactive: Interlinear Explorer
320. Tool: Interactive: Israelite Feasts and Sacrifices
321. Tool: Interactive: Listen & Learn: Greek
322. Tool: Interactive: Miracles of the Bible
323. Tool: Interactive: Morphology Charts
324. Tool: Interactive: Names of God
325. Tool: Interactive: Narrative Character Maps
326. Tool: Interactive: New Testament Use of the Old Testament Interactive
327. Tool: Interactive: Numeric Converter
328. Tool: Interactive: Online Manuscripts Dataset (See Hebrew Bible, New Testament, and Septuagint Manuscript Explorers)
329. Tool: Interactive: Parallel Gospel Reader
330. Tool: Interactive: Proverbs Explorer
331. Tool: Interactive: Psalms Explorer
332. Tool: Interactive: Reverse Interlinear Explorer
333. Tool: Interactive: Septuagint Manuscript Explorer
334. Tool: Interactive: Speaking to God
335. Tool: Interactive: Synopsis of Samuel, Kings, and Chronicles
336. Tool: Interactive: Systematic Theologies
337. Tool: Interactive: Text Converter
338. Tool: Interactive: Weights and Measurements
339. Tool: Interactive: Who Killed Goliath?
340. Tool: Library: Collections
341. Tool: Library: Favorites Panel
342. Tool: Library: History
343. Tool: Lookup: Cited By
344. Tool: Lookup: Information
345. Tool: Lookup: Power Look Up
346. Tool: Lookup: Pronunciation
347. Tool: Lookup: Search (See Search)
348. Tool: Passage: Copy Bible Verses
349. Tool: Passage: Explorer
350. Tool: Passage: Passage Analysis
351. Tool: Passage: Text Comparison
352. Tool: Reference: Advanced Timeline
353. Tool: Reference: Atlas
354. Tool: Reference: Bible Browser Tool
355. Tool: Reference: Bible Sense Lexicon
356. Tool: Reference: Concordance Tool
357. Tool: Reference: Courses Tool
358. Tool: Reference: Factbook (see Factbook)
359. Tool: Reference: Reading Lists
360. Tool: Social: Community Notes
361. Tool: Utilities: Faithlife Assistant
362. Tool: Utilities: Personal Books
363. Tool: Utilities: Program Settings
364. Unclassified: Catholic Daily Readings
365. Unclassified: Community Tags (duplicate of Factbook tags)
366. Unclassified: Semantic Domains Guide
367. Unclassified: Syntactic Force
368. User Document
369. User Document: Bibliography
370. User Document: Canvas (see Tool)
371. User Document: Clippings
372. User Document: Handout (deprecated)
373. User Document: Homily (see Tool)
374. User Document: Morph Query (see Search)
375. User Document: Notebook (see Tool)
376. User Document: Passage Lists
377. User Document: Prayer Lists
378. User Document: Reading Plan
379. User Document: Resource Collection (see Library)
380. User Document: Sentence Diagram
381. User Document: Sharing Documents
382. User Document: Syntax Search (see Search)
383. User Document: Visual Filter
384. User Document: Word Find Puzzle
385. User Document: Word List
386. Workflow: Bible reference: A/G Expository Sermon Preparation
387. Workflow: Bible reference: Basic Bible Study
388. Workflow: Bible reference: Bryan Chapell’s Christ-Centered Preaching
389. Workflow: Bible reference: Devotional
390. Workflow: Bible reference: Dr. David Allen’s Test-Driven 12-Step Preaching Method
391. Workflow: Bible reference: Expository Sermon Preparation
392. Workflow: Bible reference: Haddon Robinson’s Ten Stages for Preparing Expository Sermons
393. Workflow: Bible reference: Inductive Bible Study
394. Workflow: Bible reference: John Piper’s Ask Questions Method
395. Workflow: Bible reference: Lectio Divina
396. Workflow: Bible reference: Michael Heiser’s Bible Research Method
397. Workflow: Bible reference: Passage Exegesis
398. Workflow: Bible reference: Power in the Pulpit Sermon Prep (Jim Shaddix)
399. Workflow: Bible reference: Praying Scripture
400. Workflow: Bible reference: Precept Chapter Study
401. Workflow: Bible reference: Ralph West’s Weaving the Textual Web
402. Workflow: Bible reference: Ridley Rosner’s Regular Reading Routine
403. Workflow: Bible reference: Sara Hagerty’s Adoration Workflow
404. Workflow: Bible reference: The Expanded Christ-Centered Expositor Workflow
405. Workflow: Bible word: English Word Study
406. Workflow: Biblical person: Biblical Person Study
407. Workflow: Biblical place: Biblical Place Study
408. Workflow: Lemma: Word Study (Original Language)
409. Workflow: Preaching theme: A/G Topical Sermon Preparation
410. Workflow: Preaching theme: Biblical Theme Study
411. Workflow: Preaching theme: Topical Sermon Preparation
412. Workflow: Theological topic: Theological Topic Study
413. Workflow: Topic: Biblical Topic Study
