Assign Admin to a user groups.( Admin Console)

[abdelrahman228247602qmy]

Dear all, 

I can't Find Admin Tab in User Groups To Assign an Admin To a Specific Group.

Note: See The IMG Below.

Thanks, BR.

[try67]

What is this in reference to? It doesn't look like Adobe Acrobat...

[abdelrahman228247602qmy]