Currently, markups that are filtered out they are shown grey. Please add options beyond grey to allow also 1) Not in view, 2) shaded but in color. Another nice option would be if your arrow hovers over a filtered comment for it to be shown in color.
The "Not to View" option would be extremely helpful. I often use the lasso tool to allocate markups to Plot No's on a housing site. Using filter I can have the markups 'disappear' once they have a value. However, the problem is that you can still select the grey filtered markups and change their properties which is extremely frustrating.