Ability to choose Legal Entity when creating a req

Summary:

Feasibility on choosing a LE when creating a req.

Content (required):

We have a large amount of BUs and many of them are 1 BU for multiple entities. Is there anything we can configure that would allow the requester when entering a req to choose the LE they are trying to process the req for?

Version (include the version you are using, if applicable):

22D

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