SPOTIFY; Feedback window; UX of "back button"

Sorry for my English.

1) Hi, is it possible to add the Spotify win10 app to customizable settings for mouse/keyboard?

I have used mouse differently in the Spotify app in the (non-beta) Options, before - and now, it's problem for me to find and add the Spotify manually (because of Spotify hidden app location.. According to my research more of the Spotify users have the problem of finding the app location)

It would be much user friendlier if we can find the Spotify in the basic list of apps here in beta Options.

2) if it's possible: make this feedback text window bigger or adjustable - for people like me (who want to be precise or who are not able / doesn't to write the feedback in 3 sentences 🙃😬😬 / or in case that somebody wants to give you more than 1 feedback)

3) I am personally interested in UX design, and it was hard for me to leave the menus (by that I mean 5 seconds instead of intuitive action) the back button on the left side of the Options tab was too far for me (and I was scared that it is "BIG" back button -> that it deletes all my changes), after few tries I find out, that it's also possible to click out of the menu and that this action also close it (maybe little hint for this function?)

That's all for now :))
Thanks, and have good luck :))