Could be possible to have a flag collection?

[Tsunamori]

Is your feature request related to a problem? Please describe.
Hi there, I was wondering if there is a way to see all the current flags in the project, or search only on flags? Because when I am building the knowledge base, I hope to use flags to search through the project, but it is difficult for me to remember all the flags name especially when there are a lot.

Describe the solution you'd like
It would be great to have a list of current flags (an extra tab in explorer window maybe), and works like an outline, followed with every markdown file name contains the flag. Or, in the search feature, when I put the "#", I could only see tags pop up (currently the result is flooded by titles)

Describe alternatives you've considered
The alternative would be the search function mentioned above, or any other interesting way?

[kortina]

Just to clarify by "flags" -- you are talking about the #tags or some other feature of the project?

I think a list of the flags in the explorer window similar to the way the backlinks work could be very cool. As long as it does not degrade performance, I am definitely open to someone adding this feature.