I need a real quick and easy way to save a macro such as cut, copy or paste in Keyboard Maestro.
It is not clear if you are asking how to save a Macro, or quickly add Actions to a Macro.
Which is it?
I hope you don't mind that I have revised your topic title to better reflect the question you have asked.
Save a new simple macro
How Do I Quickly Save a New KM Macro?
This will greatly help you attract more experienced users to help solve your problem, and will help future readers find your question, and the solution.