Transform and gradient gizmo update

Nodes are cool but sometimes  I miss the convenient gizmos  available in many traditional image soft.    Like linear gradient where you can add points on the fly  select and scale them .   Like making few dots , select them and scale against the cursor or first selected .  Would be nice for Photoshop too actually.

Or transformm gizmo working in exact pixels  scaling around pointed center of transform  . See Photoshop .  Same to crop things in exact say 32 pixels  wide stripe.       I did  my own node  to do this but it needs to have "size" node connected  from previouce input.  It's tiresome  and complicates the flow.