A good feature for development would be to put a start and end date on media.
I.e When you add an image to a layout you can choose when to start and expire content from the layout based on date/time. This would save creating lots of individual campaigns/layouts.
We have a large number of individual (1 screen) campaigns that are all timed differently and itās very time consuming to keep creating layouts an campaigns for them all we currently sit at around 200 layouts, and these are all administered by 1 person.