Hey gang! Logos has the best tools, bar none, when it comes to original language Research. Your standard morph search is wonderful, the syntax search, while a bit complicated to work, I hope you'll come out with more videos to demonstrate more of how to take advantage of its functionality (although I understand Morris' Camp Logos 2 has some included). I'd like to suggest the possibility of a different type of search, though I realize the field is not quite established as others for Bible langauge study, so this may just be a projection for the future: discourse grammar searching.
Steve Runge's Lexham material has already made precedent of a discourse tagging system throughout the NT Greek, all that would be needed is to form the database in a search engine for easy access to search results for any common use of a particular discourse grammatical device.
For instance, Luke 4:24, 25 Runge annotates two pre-verbal "meta-comments"--v 24: λέγω ὑμῖν and v 25: ἐπ ̓ ἀληθείας δὲ λέγω ὑμῖν which are both used to draw the audience's attention before Jesus speaks either side of his reply to their bewilderment at his "gracious words".
Being able to perform, for instance, a search for all "meta-comments" used by Luke throughout his narrative could reveal deeper insight into how Luke views their application throughout his narrative. The results may bring conclusions that would deepen our understanding of not only Luke's use of Koine Greek in transmitting the Gospel, but, when compared with the other Gospels, or other genres (e.g., epistles) it could open the door to a deeper understanding of Koine's discourse grammar in general--maybe we would find similar co-textual relationships, certian participant relationships in the narrative between its uses, or possibly contextual narrative situations in the story line which the authors deem appropriate for its use, or any other number of insights.
Anyway, Runge's material has been a blessing, along with all the other capabilities Logos has, which far surpasses any other software to begin with. If you all think its worth giving a shot, more power to you.