This option is available to Repository Administrators. This allows an Administrator to revoke a ShareSpace Contact's access to all ShareSpaces they may have access to.
Go to Admin > Remove a non-member from all ShareSpaces.
You will see this page:
Enter the email address of the user you wish to remove. Click Submit.
NOTE: For legal purposes, this removal does not occur if these ShareSpaces contain documents that have been digitally signed by the user.