For a Layer that was created via "Create Layer From Selected Features" desire the ability to update the Layer's geospatial selection after it was originally created.
Ability to allow the end user to update the Layer to either include additional or exclude geospatial objects that exist within the source data.
Provide check widget on the Layer property interface to allow the end user to see it's current selection including current symbology plus the additional geospatial objects not normally stored as part of the selection objects within the Layer with it's symbology set to some esri default. Allow user to remove or add geospatial objects via Interactive Selection Methods or via other toolsets like that of "Select By Attributes".