Would it be possible to update all dropdown lists that use <select class="namespaceselector" id="namespace" name="namespace"> to use <select multiple class="namespaceselector" id="namespace" name="namespace"> instead so that we could control-click and select multiple namespaces (but not necessarily all) from the drop down. The list of places that I am aware of the namespace selector include: [[Special:PrefixIndex]], [[Special:Watchlist]], [[Special:RecentChanges]], [[Special:Contributions]], [[Special:WhatLinksHere]], and I am sure there are more... It would be nice to be able to select "Template" "User" and "Project" for example. This would also allow the boxes containing this selector to be a little less cluttered by allowing the "Invert selection" and "Associated namespace" checkboxes to go away.
Version: 1.22.0
Severity: enhancement