It is possible for Organisation Administrators to create custom session roles for use in iSee.
To create a custom session role click on the 'Admin Portal' link at the bottom of the Home page on the standard Management Portal. After signing in go to 'iSee System' -> 'Roles' ->'Session Roles'. Scoll to the end of the 'Organisation Session Roles' and select '+Add' to create a new role or 'Edit' to change an existing role.
When creating a custom role you will need to name the role and then add 'Activities' to the role. These 'Activities' define what the user with the role can do whilst in an iSee session.
For a full description of the different Activities and creating custom roles see here.
Note when creating a role for Staff it is important to include the 'Host Session' activity so that the holding mode is not activated when they are in the session.