Quota setting is missing - when groups are created

I am quite new to nextcloud , I have installed nextcloud 19.0.0 in an Ubuntu 18.04 VM .
When I tried to create users after creating a group , user’s quota setting options are missing . Quota option was available for users before I created the group . Could anyone please guide me resolving the issue


as far as I know there are two different quotas:
for users and for group folders.

You can manage both through the settigs.