As noted previously, this is due to the fact that the [Availability/FS] & [Availability/GTR] Engines that were supported in the main KVS Tool application, unfortunately, no longer exist.
KVS when can we expect to get availability feature back up? Its vital for my travel needs and the mobile companion is of no use as most the flights depart between 0000 and 0900 that I take. Or will this feature not come back?