This trips up just about everyone new to moodle with the 'double file choose' modal. 90% of the time you just want to upload a file but then you get the choose of repository and then you choose upload and then you click the real upload button so it is 3 clicks instead of 1.

Current state for single files:

Proposed state for single files:

When you are in a file picker which selects a single file:

Now instead you would get the list of repositories directly inline like this:

If there is a large number of repositories then they would collapse into a split button with more in the same way that tabs now do as well.

Current state for file areas:

Proposed state for file areas:

Similar to above each repository would be a button inline which eliminates another click:

Improve the icons to be meaningful and unique:

In the example above the repositories all have quite poor icons which is amplified in the second case without text. These should be normal icons like a clock for recent, a server icon for the server files etc