Hi Christian,

In Odoo 17 Enterprise Edition, you can create a new pop-up window form using Odoo Studio without writing any code. Here's how you can do it:

1)first create a new action server for your required model like,

2)Set execute code and add code for return window action like in above image

3) Create new button in your required model and select the server action that you created earlier like,

Now the button will pop up the new window

Hope it helps