You are able to pause your rental as many times as you'd like, as long as it doesn't exceed the maximal rental duration. Go shopping or pop into the coffee store, the eBike will wait for sure. Just use the in-app Pause function.
During the pause function, the bike will not be able to be moved, but you will still pay the price per minute. After 2 hours, the rental will automatically end.
After your break, simply end the Pause/Parking mode in your App to unlock the eBike and continue riding!