Displaying more information when using 'group by' feature

When using the 'group by' feature (e.g. [1]) the columns 'Exit', 'Guard' and 'AS name' are basically empty.

I find it useful that you display the number of relays in the nickname column and think that could be extended to these other columns to answer the following questions:

• How many relays with the exit flag are in a given group?
• How many relays with the guard flag are in a given group?
• How many distinct AS numbers are in a given group?

thanks!

[1] https://compass.torproject.org/result?exits=all_relays&by_country=True&top=10