Hey there.
Yes. But as far as I know (and tested), that only works if you press play, because otherwise the binding isn’t being called.
What I wanted is to change the text in the designer of my other widget so that it also updates in the designer. I know that I have access to my public variables there, but they don’t update the text without pressing play. I hope this explains it or maybe I’m doing something wrong (or maybe it’s not possible the way I mean to do it)