You can mark laps at any time during a ride.
The Lap number with a mini-summary (Lap time, Lap distance, Lap avg speed, and Lap max speed) will be displayed for 3 seconds on the screen.
To record a lap when you are on a Numeric/Graph Screen,
click the bottom right (E) button or Tap on the "│➝" Icon.
To record a lap when you are on a Map Screen,
Double-Click the top right (D) button.
You will be able to see the full summary of the Previous Lap
You will also be able to mute the Lap function.
When muted, the drawer does not pop up when a Lap is recorded.