One last thing...

[InjuinEnzan]

How come my secondary hero characters always only have one option in their command menu, when I give them several?

[WarxePB]

This should probably be in the RPG Maker 2K forum; even though it doesn't say 2K/3, it's still where questions like this should go.

Anyways, make sure that the characters themselves, not just their classes, have commands. Go into the Battle Layout tab, select a hero, and set his/her commands from there.
If that doesn't work, go into the Classes tab, set their commands from there, and try changing the character's class to the one you just set commands for.

If neither of those work, then I don't know what.

[InjuinEnzan]

Sorry about that, and you're right again. I made a new slot without the command inputted for them. Thanks again.