[Feature Request] Show all marks in a tab

[czlitony]

When keeping multiple search results, the "Marks" function doesn't work very well. It's better to show all marks in a single tab, instead of showing marks in different tabs.

[variar]

Currently marks in bottom and top views are syncronized, so only makrs from "active" tab are used. I think top view should show marks from all tabs. From there it should be relatively easy to add a tab that show all marks from other tabs as all parts to gather marks from search tabs would be implemented