Personally suggest adding a function that can increase the limited time inheritance time. I believe this function will be very popular. The function means that it can increase the time from the original time.

You can already achieve this by adding accumulate after the duration in the addtemp command, see the [temporary modifier] argument in the parent addtemp command page :)

That one. . . . . Can you give me a specific example how to write.

Already understand, thank you for your confusion