I am starting to learn a bit of python after watching some tutorials about it and I am interested in using this knowledge to customize the Blender GUI to my liking.
What I mainly would like to do is to create a completely new custom toolbar/window containing a few useful buttons and dock it in the 3D view like in the mockup image below (the panel on the left). To clarify, I don’t want this window to replace the default toolbar in the 3D view nor do I simply want to extend it. I want it to be a completely new window.
I have found many tutorials explaining how to add simple buttons to the default toolbar but none that explain how to add another one. I suspect that you need to dwell further into coding to do what I want to do here, possibly even editing the source-code and compiling my own Blender build.
Also to further extend on my question, would it also be possible to add “tabs” to a window like in the bottom-right of my image?
Thanks in advance.