RSView Studio 4.0 will only edit projects created with versions 4.0, 3.2, 3.1, and 3.0.
You need FactoryTalk View Studio 5.0 or FactoryTalk Studio Machine Edition 5.0 to edit a newer project.
Version 5 can perform a "create as" compilation that will create runtime files for older versions of PanelView Plus firmware.