I tried to look for a switch button and failed to find it. So currently only perspective projection mode is available. After working with programs that do can switch between this and orthographic projection mode, the lack of later in Formware is very noticeable.
Requested mode is already there, working in the Left / Top /Bottom / Front view, but, regrettably, perspective in those is locked and I can’t rotate around.
Also, ability to rotate perspective around the point on an object, where mouse was right clicked would be great too.