You can't trigger one macro from another. But you can use a command to switch your active hotbar page, which can help make the execution of multi-macro crafting a little more friendly. I had a two-macro rotation that had "/crosshotbar change #"* (where # is the crossbar page) as the last line of each macro, then positioned the macros in the same slot on their respective crossbar pages. The end result was that I didn't have to pay attention for which button I needed to push next. I could look watch TV or play games on my tablet until audio cues prompted me to push the button again, or until my crafting was done.

* If using a keyboard, change "crosshotbar" with just "hotbar" in the macro command.