Actually, most paginators on the site (including group/members.php) are already using the same function for pagination, so if you feel there should be more steps on group/members.php, or any other page, it's just a default that can easily be increased.
One exception to this is admin/users/search.php, which uses the same build_pagination() function to generate its html, but it has its own javascript, and a selector for the number of results per page. Adding that limit selector into the general pagination code is bug #803180
Actually, most paginators on the site (including group/members.php) are already using the same function for pagination, so if you feel there should be more steps on group/members.php, or any other page, it's just a default that can easily be increased.
One exception to this is admin/users/ search. php, which uses the same build_pagination() function to generate its html, but it has its own javascript, and a selector for the number of results per page. Adding that limit selector into the general pagination code is bug #803180