Group modify power

[Qtr.Cask]

As far as I can tell, the maximum group modify power allowed for any server group is 75.

If so, then how do you modify a group when the needed modify power can go above 75?

Screenshot of group with needed modify power of 90:

[Alcazar]

75 is the default value. You can have higher values, like the 90 in your screenshot.
You can edit those groups if your "i_group_modify_power" is >= 90.

/* edit
Btw, permissions like "i_channel_needed_subscribe_power" are not set on servergroup or client layer, they are for channel permissions.
*/

[MiddleCase]

You pretty much told us what we already know on the matter... the question was how do we go about deleting this server group.

But I was given the answer by a friend a little while ago.

I guess you just need to use Server Query Admin to remove it.