Creating trap lines

Hi there, I’m trying to set up multiple trap lines with traps every 80-100m within the line and subsequent lines at 80-100m parallel spacing. I can’t figure out how to use the trap app so that I can be out there with my phone and the GPS on and then measure the distance from my current location to a selectable location such as previous trap in the line. How may I accomplish this while out in the field?

If I cannot accomplish this out in the field, how do I establish the trap and line spacing so the distances apart are sufficient?

With many thanks.

It currently isn’t part of the field app, however, have a look at the design app (beta) it may help immensely Trap.NZ - Design tool (Beta)
If you would like written instructions on how to use the design app please email support@trap.nz