In ProjectWise Explorer User/Group Managment (Tools-User Management) would like to have non-administrators have access to the groups and user list members. Currently they can see the groups, but when selected, get the message "Current user has no access to the selected user list" at the bottom of the window.
From the ProjectWise Administrator help file:
The User / Group Management dialog is also available in ProjectWise Explorer. The dialog is the same, however to manage the membership and/or ownership of a particular group or user list in ProjectWise Explorer, the user you are logged in as must be an owner of the group or user list you want to manage. For any group of which you are an owner, you can add users to the group, and you can also add other users as owners of the group. For any user list of which you are an owner, you can add users, groups, and other user lists to the user list, and you can also make other users owners of the user list. When adding a group or a user list to another user list, you must be owner the group or user list you are adding, and the user list you are adding it to.