I know how to search for highlighted words, but how do I find results that are for example all words highlighted by a given highlight but of only two words in length?
Unless Fr. Devin has a clever solution, I'd say this is not doable.
This is not possible in Logos 7, sorry.
Just to make sure you know about this... even though you can't search by length of the highlight, you can search for specific words within your highlights. So, you can search for:
Menorah WITHIN {Highlight Box}
or a phrase like:
"Solomon's Temple" WITHIN {Highlight Box}
or any of the following three items:
(Menorah, "Solomon's Temple", lampstand) WITHIN {Highlight Box}
