I know this has been said a lot of times but this is a bit different.
Aternos will not add such function or similar features for security reasons and I respect that.
but they could add a full file manager with removed stuff like plugins folder and whatever they want or just add in a world manager that has all world and a ability to upload world without deleting the main for maybe like a pre maid shop world or something like that.
I can respect if you don't think its a good idea.
Thanks