"Language" should appear in the properties sidebar, under both the "Character" and "Paragraph" sections.
Sure - valid enhancement request. Marking as NEW
Migrating Whiteboard tags to Keywords: (needsDevEval)
Sidebar's purpose is to provide access to frequently changed attributes. Language is not and well suited at the statusbar. => WF
Yes, as language is displayed per paragraph on the Status bar, and from there language is set via the Character... dialog. This dialog also opened with one click from the Sidebar Properties deck's 'Character' content panel--applying language to current selection.
So, probably no real need to be displayed or reset directly on the Sidebar's Properties deck, the Status bar is sufficient to display current language as the Character dialog provides consistent methods to change.
A +1 for the WF