Allow saving importing and exporting Proof Setup settings (Also include Colour blindness settings)
InDesign is usually the final step in creating a publication where the changes can be made. It is therefore important to view a document, especially if intended for print, with correct proof settings. In Photoshop it is possible to save Proof settings, but in InDesign this is not possible (I wish they were interchangeable)
Comparing Photoshop, Illustrator and InDesign you see that there is less and less possibilities to have control which is ironic because often you would not know the output intent until you come to InDesign, and you may also have assets that are to be used for multiple output intents.
Ideal would be to have .psf files to be universal across applications. (Even as shared assets in same way as .csf files are cross application)
Ideally the selection of .csf and .psf should be part of Live Preflight warning.