update the availability on the same screen
Could I suggest an improvement? And that is to be able to update the availability on the same screen as the list of fixtures, similar to that seen on the 'Training' tab.
I.e. so the user can update availability on one page, rather than having to go in and out of each fixture.
I believe it used to work like this a few seasons back, and obviously works like this on the 'Training' tab.