Hand grabber draggable X+Y Position Value Controls

This would be very useful, and perhaps also a factor for zoom in/out.

The key challenge here is how the control would work in the inside. Currently FF only supports one output per component.

Of course a color composite could be "misused" to represent x,y and zoom instead of rgb, but that is not very intuitive (I used that approach along with the color picker dialog here to get similar positional control).

A much better approach would be to deal with the multiple outputs issue al together. The "plus" components introduce a method of supplying variables to the sub tree components. A similar design could be used to add additional outputs. This would allow many other components to output useful internal layers

Mockup:

Yes it would be nice to be able to grab a procedural image via hand tool to scroll the whole image in any direction to be able to position then just release to regenerate the view. This is very intuitive. Kinda like the way a google street map or satellite image works with a hand grab tool.