Creating an interactive SmartPhone(Model) menu

Hi;

I’m trying to work with a smartphone model, trying to cast a menu on its screen. For a better example, I’m trying to make pretty much something like this.
I want to have interaction on my phone, and I realized that I could do that only with Render Texture, but I couldn’t find any useful tutorials to actually see if I can do that.

I understand that I need to use the Renderer camera on orthographic settings. But till now, I have no luck getting to it, let alone having interaction on the phone.

Is this possible, if it is, can you please help to direct me?

Regards.

Alright, I did it with use of Render Textures. You can assign same render texture to many different cameras, and (de)activate them as you wish, to navigate through menus.