OK Mode layout

Hi guys,

I am having troubles with editing sales quotation layout on SAP B1 (8.82)

At this moment it is missing currency as show on the picture. Base price should show EUR

and Total should show SGD. Because at this moment it is confusing for customers.

This sales quotation layout is not in preview layout, but in coresuite designer.

When I try to open designer or preview .. I am getting this error messages.

Do you know how to enter OK mode, or how to easily add currency to this layout.

PS: When I choose different preview layout (not from cor. designer) I am able to edit it and these previews have currency in it.

Thank you for your advice.