Currently auto completion gives a user all available command and narrow down the option for example (see[1]) , when hit <ta><tab> after enter display-type it will not gives you "vnc" "spice" [1] [oVirt shell (connected)]# create vm --name VM2_CLI --display-type
options suggestion is not possible in auto-completion mode, as it will mean executing http/s request to server for each option, what will lead to freeze of the application on each <tab><tab>.