Filter Selection Panel -- Select All, Deselect All
My need when using the Filters is usually to select one type of object, or all but one type of object. A Select All and a Deselect All button would be very helpful so it doesn't require clicking 20 check boxes each time.
Comments
This already is in the next versions of MuseScore, wo it will be in 2.1 and 3.0 if and when they get released
But note there is already a much easier way to select all of a given type of element - right click then see the Select menu. You can select literally all of them, all in the same staff, all within a range, etc. Really, the filter should only need to be used to *exclude* elements, meaning you should essentially never need to deselect all.