The prompt cannot be changed an is set to "Target hosts".
The input and the optional command argument is a space separated list of hosts and/or hostgroups ( @HOSTGRP ).
If hostgroups are entered, those hostgroups are resolved and the resulting list is a uniquely sorted list of target hosts. Therefore, if a host is member of one or more hostgroups and eventually entered as a separate target host, it will be listed only once in the resulting list.
If the input differs from the default, the input prompt is repeated to allow verification and modifications.
If no target list is specified in targets, a default target list is provided in the input prompt as it is resolved by the hostlist(3) command.
This is free software; see edrc/doc/COPYING for copying conditions. There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.