Thank you LTT,
I feel better that is does not work for more people.
Thing is, to bring the minimap, I need to have enough lines – which triggered my ask in the first place (View menu –> minimap is the right place for what I ask).

PS: the windowing experience is rather poor overall, why I can’t have dockable, auto-expanding on hover windows? E.g. the Synatax Checker window is the prime candidate for this.