Awkward - when a view is placed on a sheet, it's suddenly called a viewport. And it suddenly has a type. Smells a bit like AutoCAD. Anyway, what I would like is to set the view'port' type _before_ I place it on a sheet. I.e. when a view is opened, the Properties Panel should display something like a drop-down to set the type of view'port'. Just like it has, for example, for Display Model.