Hi Nikita,
Unfortunately, this is not possible in GD Cloud right now.
But, first two option were actually part of our older solution with UI called PixelPerfect. Therefore I believe, it should be doable in GD Cloud with Responsive UI as well.
Not that sure about the third point, but I’d be more than happy to submit a Product feedback on your behalf.
May I know how critical is this for your business case, please? Would such feature make it easier for you to navigate between the Dashboards while still focusing on selected data, for e.g.?