It's hard to tell from this description exactly what you did. It sounds like you created the first macro, and saved it to that workbook. Then you created a second macro in a second workbook. Then the first macro will no longer be visible when you are working on the second workbook.

The usual way to deal with this is to put macros in the PERSONAL.xlsb file, which is always open (and hidden). But then the macros will not be on her work PC. They would have to be copied there. Or you could create another file just with the macros, and copy that to the work computer.