Using command button inside precedure

I am writing a program in which a command button's caption is changed, I then want to use it again in the procedure.
When the cmdEdit_Click procedure runs an input box is displayed and the user inputs a term to be searched for. The use can then alter the data to be added to my txt file. Then the caption of the cmdEdit button changes, and I want the user to be able to click it again to save the changes to the txt file.
any help is appreciated.

Thanks