Need a User Group Clone Option, since i need to clone the Registered users group and do some small modifications for new user group. But without clone option it would be difficult to set the permissions.
Since I need exact permissions of Registered Users to create new user group.
There is no need for a clone option. User group permissions are designed to be cumulative. Everyone should have Registered at their primary user group. Other user groups are added as secondary groups. There is no need to replicate permissions across groups, the secondary user group only needs to have the permissions which are different from the Registered group.
Details on how to use XenForo permissions are here: