Is it possible to have RedQueryBuilder make the suggest call when a user clicks on the argument box but doesn't enter any partial text?
For instance, in the screenshot below, the user has not entered any text but just clicked the text box. It would be nice to have suggestions (limited to some user-defined limit, say 10) if the user doesn't know exactly what all NAMEs there are.
I'm afraid there is currently no built in support for this.
There is an issue, and some code, on github: https://github.com/salk31/RedQueryBuilder/issues/26
If you comment on the ticket it should help it get into the next release.