The idea is essentially to be able to transfer maps from gamemodes to gamemode in a custom server. There will be a list of maps that you can choose from, and all others will be outlawed. It will be in the map override screen and it will be in a category of its own.
Here are some examples:
Any hide and seek map on murder mystery: yes
Any murder mystery map on Skywars: no
Any treasure wars map on Skywars: yes
Any hide and seek map on treasure wars: no
Certain gamemodes will not have this ability, such as:
Block drop
Just build
Ground wars maybe
Block party.
Anyway thanks for reading, and please leave feedback