How do I move a manual waypoint (added via an address) before the Supercharger stop? Frustrating

[Carpediem24]

I am doing a long road trip next week. On the way, I'd like to navigate to a particular restaurant near a nearby supercharger, pick up my food and then head to the supercharger, where I can finish my meal, while charging. But the damn thing refuses to let me do that but instead guides me to first finish charging and then to the restaurant. It shouldnt be this hard to do this, yeah? 

Edited February 15 by Carpediem24