Thank you for your reply which I learn from it some useful shortcut keys.I think I have failed to bring up the issue in a clear manner.
Assume I have created a macro with the name "x” and I want to assign a keyboard shortcut to it (by using Onkey command or manually. see this link) . My question is: can the Alt key be used in the combination of keys which are to be assigned to” X”?
Broadly speaking, I am interested about combination of keys which can be used for assigning shortcut keys to macros.