Selected Answer
Hello again Susan,
I too have been faced with this quandry in the past. It's actually quite easy to learn which macro is associated with a button. Move the mouse pointer over the button then right click and select "Assign Macro" from the drop down. At the top of the window which opens the macro will be listed. The name of the workbook will preceed the macro name (eg: 'My Test Workbook.xlsm'!My_Macro_Test). From this window you can click on "Edit" to make changes. If you want to have a different macro simply just select it from the list of available macros. Macros for worksheet events will not be listed; those must be accessed from the VB Editor (right click the sheet tab and select "View Code")
Hope this helps.
Cheers :-)