His suggestion has actually been implemented and working in the current version of FlowCanvas (implicitly; no “mode” selection required).
You can actually search for “transform.position” like in his video:
[attachment file=”FuzzySearch.gif”]
..or, based on our discussion on the Unity forums, you can also do a “shortcut” of that like so (with or without ‘.’) :
[attachment file=”FuzzySearch2.gif”]