Here you can find step-by-step instructions on how to record a track with GPX Viewer PRO:

1. Open main left menu.
2. Tap Track Recording button.
3. When red recording icon appears on the right side of the screen tap it.
4. Select a profile that fits your transportation means.
5. After starting the recording you have 3 different symbols to use.
   1. Stop the recording.
   2. Pause the recording.
   3. Add a waypoint from your current location.
6. After stopping recording, you can adjust track details such as name. description, links, location, and file type.

Below is a video showing the following instructions: