In option/connections, the NMEA
debug window can be shown.
Here one can select "pause" and "copy".
I propose to add another option to this NMEA
debug window, called for instance "no scroll". When this is activated, incoming NMEA sentences will overwrite the previous sentence with the same NMEA identifier. (talker identifier and sentence identifier).
So when there are 10 different NMEA identifiers coming in, you will see exactly these 10 lines. Including the ones which are only sent rarely, or only once at startup of some equipment
This option is present in the MPXconfig2 software
controlling the Miniplex series of multiplexers, and in my experience is very practical for analyzing NMEA problems.