Why are the "Disconnect Users" and "Disconnect User" buttons missing from the Send Message to Users screen?

The buttons will be hidden if either:

• Can disconnect users if not checked on the login
  This is set in: Exo Config > Staff tab > Profile Assignment > Staff > Authority tab.
  

  

• The database login in use doesn’t have the ‘ALTER ANY CONNECTION' permission - use SELECT HAS_PERMS_BY_NAME(null, null, 'ALTER ANY CONNECTION') when logged in as the user used by the Exo database login. “sa” will normally have this permission, but the “EXO_USER” account doesn’t. We suggest that Exo administrators create two connections for a database, one as sa to be used for Exo Config/administrator (this is required for Exo Updates), and a account using the EXO_USER logon for other usage.