FR: Add elements to multiple groups

[nqm0711]

Is your feature request related to a problem? Please describe.

One set of elements can only belong to one group. It would be very precious if there is a way to group any set of elements into different groups and each group has its own id to copy as link.

If I use the frames, not only selected elements are shown but also the non-selected elements that placed inside frames.

Describe the solution you'd like

It could be the same way that we can put youtube videos to different playlists (add to existed one or to a new one), like virtual groups that can intersect with others instead of grouping them into a single physical group.

It's a way to control visibility of elements by grouping them into a virtual groups. It should not be in any particular shaped frame, but just a list of elements that provides a way to control visibility.

Real-life usage scenarios

No response

Describe alternatives you've considered

No response

Additional context

All the color in this image is just for better understanding way of grouping, not actually visible in the displaying, the letters are elements, the gray is transparent background, red/blue/green/yellow is name of the group.

When using link, for example ![[My Note.md#^vgroup=Red]], it should only display those elements that in the list/group red with their relative position, like described in my image. Other element not in group shouldn't be displayed.

If using the frame in this case, the F element is also displayed, as the frame tool is rectangle.