You can edit groups' information and access privileges to shared folders.
When you encounter privilege conflicts, the privilege priority is as follow: No access > Read/Write > Read only.
The speed limit for a group is the limit of the total bandwidth used by all group members.
When a user belongs to multiple groups, his speed limit is decided based on the group with the highest available bandwidth at the time of transferring files. Because bandwidth is divided evenly among users currently transferring files, the available bandwidth changes based on how many users are currently consuming the group's shared bandwidth.
For example, one user "John" belongs to "Group 1" (speed limit 500KB/s; total five users) and "Group 2" (speed limit 400KB/s; total two users).