Selfhosted

A few months ago I setup my own Synching Server and its been working great. I right now have 7 devices (server itself, phone, tablets, laptops, Desktops, ...) synching files from 5 different folders. The problem I have right now is that adding new folders / devices is a huge hassle since in order for EVERY device to properly be in sync I need to manually add for example a new folder to every device. If I were to add 5 new folders I would need to repeat this 5 times for 7 devices... I think you get the point.

What I wanna know is if there is a simple way to basically share all the folder keys of a syncthing device with another device without manually copy pasting them? I don't really care if this would be by enabling some setting on the server or by copying around a file (I do this for example with my newpipe subscriptions and use syncthing for that).

Also just creating one large folder is something I'm trying to avoid since not every device needs everything you loose the ability to fine control individual folders. I for example don't want my phone to start syncing my music library when I'm using data.

EDIT :

I played around a bit more and I found out that going into the server and marking all the devices add as introducers sends a notification to all these devices where you can easily share folders!