Can we Override Benefit Election Value?

Summary:

We have a requirement to Override the Benefit election value instead of end dating and stating a new election.

Is this possible to override the Value

Content (please ensure you mask any confidential information):

For Example: We have a Benefit plan where employee can make an election to contribute some part of there salary like 15% but if they would like to change the contribution from 15% to 20% after a couple of days before the Payroll run, the system is not allowing them to update /override the current value.

The system is also showing a message that the change window is open only till the end of the day they enrolled into the Plan.