When you first install CC5 or any other software, it comes with the basics, but if you've been collecting assets or addons for a while, it seems like you manually have to go in and find and download them all. This is a huge time suck, annoying, and a really really big turnoff for new users who don't know what they are doing yet.
Every time you click on something it either downloads in the background with the user having no idea what's happening, or it takes you out of the app to the store page.
Here's my suggestion.
You can do this on the store page, as well as in the individual apps themselves.

Have a location where it shows you all of the content that you currently own.
Allow the user to sort it by purchased, trial, maybe a key word search, basically any metric you can.
(I know you already kinda have this, but here's the golden part)
Allow users to select any number of boxes on content that they already own and have purchased, and then have one great big, easy to find, "Download" button.

This would be awesome, and solve so much frustration with people looking for assets while trying to use them and then getting stalled because they still need to download them.

It's just an idea, but some sort of ease of downloading massive amounts of assets would probably be AMAZING!!!!!