How to Edit charge account on the PO generated from the PR with Inventory and expense destination

I need guidance on modifying the Charge Account on a PO that was automatically generated from an approved Purchase Requisition (PR).

Specifically, I would like to know:

1. Is there a specific Privilege or Duty Role required to enable editing the Charge Account field at the PO level?
2. Do I need to perform this modification using a Sandbox?
3. What are the other possible workarounds or standard setups to resolve this issue?

Any setup paths or best practices would be greatly appreciated.