How to makeMemo Line field required for multiple BU's with Page Composer Expression Editor

Summary:

How to Personalize Memo Line field required for multiple Business Units with Page Composer Expression Editor

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I would like to make the Memo Line field required for multiple Business Units with Page Composer Expression Editor.

I have used the Page Composer to enable the Required flag and added a new expression based on the orgid, but I do not know the expression to add more than 1 business unit in the Expression Editor

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