Hi there,
Thanks for reaching out.
Unfortunately, we are not able to provide you with exact instructions on how it can be done since it is a customization request and it is beyond our support responsibilities. However, I can give you some general guidance on how the plugin works and how your use case might be implemented with the Simple Stop Watch Timer plugin.
To start the timer when the customer is picked up, you would use the “Start Timer” action and, then when the driver reaches the destination you can use the “Stop Timer” action. Then to calculate the exact end price of the ride you can use the event “When Timer End” and add the required calculation of these values. For additional information regarding the plugin and its actions please visit the documentation: Simple Timer/Countdown & Stopwatch Plugin
In case you have any other questions, just let me know
Regards,
Kirill