Default filter is not collapsed
When clicking on "view all issues" on the issues tab on a project the filter is "open", showing all the fintering options. This takes some space from the screen.
Is it possible to have the filter option collapsed, so you only see "filter" and then you can open it if you need to make changes to the filter?
Attached image shows the filter that is not collapsed
It is the default functionality of Redmine.
For unsaved queries the filter option is 'expanded'.
If you open a saved query you will see that it is 'collapsed'.
You can change the functionality writing a plugin.