Collections Interface

I'm wondering when we implement collections and how they are going to work. I made a sketch:

collections2.png

Should we sacrifice some of the right screen-estate for simple collection (course) timeline-widget? There content/activities/tools are added intelligently to default course template. (Intelligently = activities and content take places in timeline, but tools and materials that are like resources to be used during the whole course are added as atemporal items.) This simplified interface wouldn't cater all of the possible courses, but make starting crafting courses easy. The collections would have their own page where things can be defined more accurately.

This is nothing definite, just to make explaining myself easier.