Add the option to purchase more guild space.
Guild space meaning the amount of members a guild can have, which is currently 25.

-sell additional space in increments of 5 member slots

-you can only purchase space for the guild you own
in theory you could give leadership to a friend and they could purchase slots for you, then give leadership back.
The slots purchased stays with that guild permanently regardless of leadership

-raise the cap to 50 members total
after you have 50 members available you cannot purchase any more space for that guild


as for the 'view members' thing just make that scrollable to see more members

this feature would be ideal for popular and active guilds