I personally find it hard to remember the command shortcuts such as U for UseLast when rotating an object or R for PreviousEdgeSelection when filleting edges.
How about L for UseLast and L for LastEdgeSelection?
Yes, “U” is kind of given once you try to do anything… 
// Rolf
Hi Martin -
We just went through a round where keyboard accelerators were changed between Rhino 6 and Rhino, causing havoc in established workflows. I don’t see this changing.
-wim
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