I generally find myself using the same sets of units commonly, things like branch, certain functions in scripts, some super units. A dockable toolbox to set up these common units as short cuts would be really handy.
Today I set up a workable solution to this by making a toolbox macro, and keeping it open and locked in a second window:
Reserialization breaks this setup though (graphs lose connections), so this would be a really nice built-in/officially supported feature!
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