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.