When adding Domain from any query log, assign directly to a client group

[yubiuser]

I think what you want is similar to

Specify action black/whitelist in query list to a specific group-list

If a click on "whitelist a domain" in action for a recent query, this withelisted domain would be alined to a choosable group-list. (same for blacklist). This may lead to fewer clicks.

You can vote for that feature request.