Compensation Plan Question

Summary

Need a new Pool to be handled.

Content

We have a Comp Plan which does merit increments for all locations. The Merit is Worker Level Budgeting and is attached to salary.

Now the team decided to give a Fixed additional amount to Specific location. And they want this distributed by a specific Manager to Employees and no one else below him should see this budget or allocate in the worksheet.

What are the Best ways to handle this?