Ability to Group Charges

Hi

New user here and I've had a good look and search, sorry if this is covered somewhere.

I was wondering if there was a way of Grouping charges together?

The reason for my asking is our electricity provider automatically stops charging on our car when plugged in and then schedules low cost charging overnight. It then controls the charging during that period.

However, the car has to be charging for the provider to kick in and turn that off when it is peak rate. I would like to be able to group those charges together to see the total cost of this charging.