Using the context method was a kind of trick where the datasource of the form was manipulated to include a sub datasource and then filter on a field. In fact, using the advanced query, you can do the same manually.
A new grid control is already described in the new April 19 release notes, but not sure if filtering on display methods will be part of it:
docs.microsoft.com/.../planned-features
The best way is creating a view based on multiple tables and use this view as datasource form. If it is an existing form, try to add the datasource to the form and then add the field instead of the method.
Based on the need, you can also export to Excel and then do some filtering.
