Personal query is one function that has been around for quite a long time, but only used by more experienced users. If you query for the same filter conditions very often, you can save a set of filter conditions as a personal query, so that you can query your form with that condition with a single click in the future.
However, a lot of users don't even know about this feature or didn't realize how much this could help them. We've added another type of feature called "System Query", which the application designers can save a set of query conditions for all users of the form to use. This way their users can get a taste of the convenience without needing to setup the query criteria themselves. You can create multiple views of the data that all users share without duplicating the form.
If you are a Ragic developer, try this out and let your user know about it.