Hi Giulio, right now there is only a single view style. I do want to add more kinds of view options later on, but I won't be able to work on that for a while yet.

One thing you can do is go to options and uncheck "Display hidden-line curves" and "Display hidden-line edges". This will remove the dashed wireframes from the view.

You can also select individual edges and use Edit/Hide on them if you want to hide them for a particular object.

- Michael