[Feature Request] Sync-Button for Permissions in Text- and Voice Channels

This image will probably explain the most questions, towards this feature request:

https://discordhelp.net/image/sync-permissions.png

Make also sure, you are visiting this picture, if you don't know, what I meant with this title.

So what do I exactly mean with this feature request...

So when I was setting up my own server, I saw, that only the desktop-version had the ability, to sync permissions of an text/voice channel to the corresponding category.

I personally needed this feature, as I already setted up the text- and voice channels, because I don't wanted to laboriously adding the same role, with the same permissions to any of the channels on this category.

The advantage and result of having a sync button for synchronizing the channels permissions, with the one of the category, would be a really time-saving and convenient feature, that could help server owners, quickly managing the permissions, without needing to cut-off time, for events, that are currently starting, or needing to turn on their computer only for this one task, for example.