I think it would be convenient to have a clock displayed in the UI, so current time.
Related to clock, a new column in the last heard windows for CQ/Beacon, a delta column showing how long time ago they have been heard, updated maybe every minute, not seconds.
73
Erik OH2LAK TF3EY
How about 'color coding' the Last heard? Conditions on HF change so CQ/beacon heard a hour+ ago is from some point irrelevant. Green= heard in last 30 minutes, yellow last two hours, black=older? Green is bad on white so maybe some other color but you get my idea for sure :)
Or maybe a symbol of some sort š(20m) 12:05.00 - OH2LAK
š(20m) 11:03.04 - TF3EY
(20m) 09:42.04 - OH2LAK