SOP New Quotation/Proforma should not allow new accounts to be created if user's role doesn't allow it

In SOP Enter New Quotation and Proforma there is a "New..." button, which allows new sales accounts to be created.  This button should not be visible if the user's role doesn't allow the Sales Ledger Enter New Customer Account feature.

This is Known Issue 7036, reported in 2016, so probably not on the fix list yet.  Maybe adding it here may make someone at Sage notice it.