You’ve stumbled into the downside of the boolean pattern.
When you want to ‘upgrade’ from boolean, and you don’t want to be able to do more than one at a time, the next level is to make the behavior depend on a enum, which I think you’ve basically done.
But if it gets much more complicated, and you have trouble figuring out when you can do what, then the stage after this is a behavior tree. Which, handily, Epic have made for you 
