In Pocket RAMM click on Settings in the top RHS of the tool bar as shown below.
The recording details for the mapping and for the snail trail are in GPS and Patrol tabs.
Please note that the Snail trail is lost once device is turned off.
Watch the Video
There is a very helpful video Understand GPS Settings.
This explains, among other things, how the Snail Trail is created and whether you should set the Snail Trail Refresh Rate slider to a low, medium or high setting.
If the above doesn’t work please get in touch with our Support Team either by phone (NZ 0800 256 832, Aus 1800 196 213) or by email (firstname.lastname@example.org) and we’ll be happy to assist.