Source grouping
From issue #907 (closed)
I was just asking if they were considering overridable switches. Imagine a scenario in which a user has access to 2/3 scanners (different rooms, etc.). If there were 3 scanners with 3 sources each (ADF, ADF Duplex, Document Table) that would already be 9 sources in the right menu plus the manual upload source.
Another way of implementing this might be to allow grouping of multiple document sources, such that you can have multiple document sources that each have their own custom scanimage command, under one label.