Shortcut Keys

F8	Step Into. Executes the current line and moves to the next line.
Shift + F8	Step Over. Executes the current procedure assuming it works.
Ctrl + Shift + F8	Step Out. Executes the rest of the current procedure.
Ctrl + Break	Will interrupt your macro, alternatively you can press ESC.
Ctrl + F9	Set Next Statement.
Shift + F2	Current Definition.