Request, Option to set price per kWh for a specific timeframe at once

I can currently edit price per kWh for a specific date, but I would like to change a date range at once. Ex. I search all charges from  6/15/2022 to 7/18/2022 but I need to enter each one of them to set the kWh price. it would be nice I could set the price for this range at once. Why? my electricity bill change every month because it account for gas prices changes every month, so the kWh is always changing, to have it accurately I have to enter each charge for the cycle and change the price.