EL Expression for Redwood RSSP PR approver edit

Summary:

Currently in Classic SSP, When approver edit PR while approval, we disabled some of the fields.

Condition used in page custom is #{bindings.Flow.inputValue == 'approverCheckout'}

Since we are moving to Redwood RSSP, we need the same functionality in RSSP.

Need the EL expression/condition to find the page (Shopping Cart - View) is in approver edit, so that we can use VBS to disable Edit, Line Edit, Duplicate, Delete,…..

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