[FEATURE REQUEST] Bookmarks of Calculations

[inson1]

Is your feature request related to a problem? Please describe.
I want bookmark specific calculations and set them name, so I cant find them easier in future. Even after deleting history.

Describe the solution you'd like
Another tab next to History.
Sorting by age of calculations like in history should be enough. (it would be sorted by date of bookmark creation)
On/off switch in settings.
It should be independent on History. (another collection in memory, so if you delete history, bookmarks stay)
I think bookmarking already done calculations in history si enough.
And bookmark them by pressing them maybe? Idk about this part.
And then ok/cancel window for settings name?

What do you think? Do you have some ideas for better implementation?