Show whether ICMP, UDP, or TCP is currently used

[mb720]

Hi and thanks a lot for mtr!

Is there a way in curses mode, to show whether mtr currently uses ICMP, UDP, or TCP for its probes?

That would be useful when switching modes using t and u.

[yvs2014]

If adding those options to display at runtime in future, I suppose both options and keyactions could be shown. Using a bit an older version with such displaying, can say, too, that it's helpful sometimes. For example, options from CLI and keyactions in round braces could look like

                                   mtr-0.85.139 -y2,4,2 -f3 -d11 google.com
rhome (0.0.0.0)                                                                     Thu Jul 20 13:10:27 2023
Keys:  Help   Display mode   Order fields   Restart   quit

then after pressing t n d, it looks like

               mtr-0.85.139 -y2,4,2 -f3 -d11 google.com (TCP-pings, DNS-off, Display-Type: 3)
rhome (0.0.0.0)                                                                     Thu Jul 20 13:11:32 2023
Keys:  Help   Display mode   Order fields   Restart   quit