Procedural Animation & connector: dedicated layer for the effect

[Nico-Duduf]

Add the option to create the effect controlling procedural animations (kleaner, wiggle, swink, wheel) and the connnector, on a specific, dedicated layer.

Several possibilies:

• option to always create a dedicated layer
  • or only if the selection when creating/connecting spans multiple layers
• option to add a new layer each time, or gather all effects on a single controller.

Maybe add a shortcut?
That's a bit complicated, [Shift] Click is already used for all tools with options, and some already need [Ctrl] and [Alt] or a combo of these...
It may be some other key though