I´m am pretty new to CNC, I have a very old Acroloc M12 with a Fanuc 6m control, and the tool change doesn´t work so I have to do it manually.

How can I program a stop in the program, make the Z go up a little (enough to make the tool change) and then continue the program?

I found that I could use M0 or M1, but am not sure if this is correct.

Any help is great, and thanks in advance!