Hey, I know it’s been a few months, but I stumbled across your solution to this problem. 
Your method works perfectly if the actor (in your case a door) has already fully completed its motion when you reverse and restart the movement, however I was wondering if you happened to find an option for interrupting movement partway through?
To use your door example, if you started opening a door, it opens halfway, then you interact again to close it while it’s still in motion towards “open.” With “Restart Movement”, this causes it to jump position to the end point rather than switching directions partway through.
In my case, I’m trying to create a moving platform that moves forwards while the player stands inside a trigger. Exiting the trigger should cause the platform to return to start from wherever it is and stay there. InterpTo Movement seems like a cheap and easy solution, but I just cannot figure out how to reverse the direction variable during play without popping… I’m in networked multiplayer, so I would prefer to use a movement component for the built-in networking smoothing. If you have any further thoughts on the topic I’d love to hear. Thank you for your time. 