Add quick temporary "save current view" or "go back"

Often, I have a view (map + zoom+ screen center) I would like to continue working with, but

• must shortly interrupt and do something else like e.g. look up the walking time + route between camp and supermarket to know when we need to leave and how to go
  or
• do call Locus from outside e.g. from Total Commander by clicking a GPX file, from park4night via routing button, ...
  

after which I would like to return to my previous view. This is currently a manual process I had to do many times a day during vacation in a group of 7 people and me being the main tour planner answering questions of the other people.

I would love to have something like PUSHD and POPD in windows command line, or like back button of web browsers, or bookmark / save current view of Vespucci / GeoSetter / ... which may be called e.g.

• by double tap of map content button
• by function panel
• in map-screen content panel

When shall it save a view? If I am within Locus only when I manually tell it, if I am outside Locus and call Locus automatically.