Currently if you are moving entities you have to click on the entity, hover on the triad direction you want it to move, and then click and drag. This is cumbersome when you are making a lot of fine edits, which is what the tspline environment really is!
I suggest that Fusion add the ability to LOCK the TRIAD allowing users to very quickly click&drag their points/edges/faces around to get the shape that they are looking for!
Video: https://screencast.autodesk.com/main/details/7f0d9060-6f01-4061-a373-ef2a4e572403
