Removing old flight tracks in LittleNavMap

Is there any way of removing my old flight tracks from the map and elevation windows in LNM without having to do a complete reset? I've done the reset option a couple of times to 'clear the field' as it were but, surely their must be a way of removing old flight tracks without doing this?

Also, I often fly to or out of Blackbushe AP (EGLK) in the UK as it used to be my home airport in my PPL days. I notice that within LNM, the field elevation is stated to be 1066ft (which would make it the highest point in southeast UK!!). The actual field elevation is about 100m (330ft.) so the info given is obviously incorrect. How can this be rectified?

In little NavMap on the menu bar, click Map then look for "Delete aircraft trail"

Hal

Or, you can click on File>Reset All for a New Flight>OK