extend the effective end date of already end dated rate

Summary:

Is it possible to extend the effective end date of already end dated variable rate profile add to the Standard rate.

Content (please ensure you mask any confidential information):

variable rate profile attached to the Standard rate was by mistake end date as of today. Same profile is good for coming years too.

Is there a way to remove the end date or make it like 10 years from now.

Other option is to delete the variable rate profile → save the Standard rate → re-attach the variable rate profile. If we do this, will this impact any existing usage of this variable rate profile?