Currently it is not possible to perform periodic "full sync" (in ALM Sync terminology). Despite "clear HWM" functionality mentioned in https://admhelp.microfocus.com/connect/en/4.0-4.2/Online/Content/Topics/high-watermarks.htm, there is no option to clear HWM periodically, according to a schedule. Basically, we are looking for "Full Sync" feature similar to ALM Sync's one.