remember querys

[JordynMitchell]

make a 'query rememberator' so querys can be remembered/stored and re-used 
(not just saved out to a file)
this would apply to sql queries, definition queries, label classes, cal files - etc...
maybe point to a folder where they are stored as individual .txt/.cal files with titles to help select them from a drop down pick list (and ability to edit the pick list)

[KoryKramer]

For the part about the pick list of queries to choose from, you may want to join the discussion at https://community.esri.com/ideas/2358‌.  It could be an interesting design consideration.

[KoryKramer]

Since this idea was posted, ArcGIS Pro has implemented the ability to define multiple definition queries on a layer, name them, and switch the active query using a drop-down list that shows the query names.

https://pro.arcgis.com/en/pro-app/latest/help/mapping/layer-properties/definition-query.htm 

I realize that definition queries is just one of "sql queries, definition queries, label classes, cal files - etc..." but wanted to make note of it as possible.