I want to be able to move the control points of the tube tool with Gizumo.
agreed 
or snap on the grid.
I really really want this too, the tube tool has been improved and is super powerful, but moving the nodes around is one of the things I hate the most in Nomad, it could be “easily” resolved with a Gizmo added on the active note that you have selected. it would also be amazing if instead of simply tilting we could rotate. If we got this also in the curve tool, it would be awesome!