Restrict display of LOV when selecting Existing Organization from Beneficiary Organization from ESS

Summary:

Restrict display of LOV after selecting Existing Organization from Beneficiary Organization from ESS

Content (please ensure you mask any confidential information):

We have a requirement to restrict display of LOV when person selects Existing Organization as Beneficiary Type from Employee Self Service. So that Employee should reach out to Benefits Admin to add existing org.

However LOV should be accessible or display only to Benefits Admin.

Please suggest how can we achieve this.

Code Snippet (add any code snippets that support your topic, if applicable):