Is there a hotkey to execute the rigging node graph (trigger the setPreview on the execute node) from the 3DViewport?
Jason told me about the 'e' hotkey to execute the setPreview on the execute node, which is great, but unfortunately it only works when the mouse/cursor is in the rigging nodes windows and does not work when the mouse / cursor is in the 3DViewer. Being able to execute the node network from the 3D Viewer with a hotkey would allow you to very quickly try changes and update.
Move empties, hit 'e' to update, move empties, hit 'e' to update,... All without ever leaving the 3DViewer, while you are 'fitting' a rig that would be super handy. and allow for a faster and more intuitive workflow.