Description

As a user, I would like to be have the option to view issues and pull-requests from multiple repositories on their respective pages. Currently, selecting one repository removes the other repos from the list. This feels unnecessarily limiting, and not very intuitive. My suggestion is to use a similar style, but not remove the repos and also allow multiple selections.

Possible method

Currently, the page identifies what repo should be used by defining a number of variables including repo (e.g. ?type=all&repo=17&sort=&state=open). Passing multiple repo entries here could make multiple selection possible, something like
?type=all&repos[]=17&repos[]=21&repos[]=22&sort=&state=open.

I will test out a local fix, and post my findings here.

Illustration