P: Keyboard shortcut should be customizable

I think that's because it doesn't technically act like any of the brush blending modes. You'd think it was acting as clear, but I don't think that's technically the case.

Im not at my computer right now but I don't think clear blending mode works when painting on masks but holding tilde does. So tilde acts identically to the eraser tool but with the same brush selected as your brush tool.

I honestly can't believe they would implement a new feature with absolutely zero customization. You can't rebind it to a new key and you can't change its behavior. I'd love for example if you could choose to press it once to toggle it on and press it again to toggle it off. Instead you have to press and hold which is really awkward considering you can't change the button's mapping which affects some users more than others especially when it comes to handedness and if you're drawing with a tablet, etc.

Come on Adobe. You can do better. You should do better.

Die Funktion ist jetzt unter alt+< zu finden. Nur < springt zwischen malen und radieren (solange < gehalten wird, wird radiert). Die Funktionen sind auch noch bei Adobe auf der Website falsch dokumentiert (da behauptet man es sei die "Tilde unterhalb escape"). Dumm, dass man das nirgends selber konfigurieren kann.

Seit dem Update von Photoshop 2020 (MacOS Catalina) funktioniert die Tastenkombination für Maske anzeigen (<) nicht mehr, wenn der Pinsel aktiv ist.

Sorry if I misunderstood your issue. I personally didn't realize I had to hold down the key for it to work, so I thought maybe it's more common. 

I think they merged this into the same thread because these issues all center around functions activated by the tilde key. 

Another problem I noticed with the accent grave shortcut is that the brush tool blending mode drop down does not reflect the toggle.

I do not understand why you moved my post, it's not really the same problem, it's really stupid.
It could not be worse for you to integrate this function.
to answer Arthur Shi, I 've never talked about Toggle, what are you talking about?

From what I noticed, you have to hold the tilde key to change it from paint to erase. It's not a toggle button. 

On german keyboard the function to show the red mask seems to be alt+< now. Only arrow toggles brush and  temporarily erase

On german keyboard and on a mac I miss the shortcut "<". Normally it should show an hide the red mask overlay as if you option-shift click on the mask in levels palette. As this is not custumizable it should come back soon., please...

Hello,
i have a problem with the tilde to switch between painting and erasing with the same tip shape.
I use an Ergodox keyboard, and I have also tried on other keyboard, but the shortcut does not work.
I also can not reasign the function to another shortcut,
I hope that adobe will add the possibility of assigning another keyboard shortcuts to this function, because it is really very interesting.