There is a little less information in your post what you exactly like to do so also what you need. Normally setting the movement commands with the motion interface should be enough to get the axis running at the same time.
I think the easiest two ways to improve this would be:
Using the second axis as a Gantry. Then it will run position synchronous with the master axis. Beware that "synchronisation" has to be done in standstill.
Switch override of both axis to 0%, set up both movement commands and then switch back 100%.
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