Adding parts to PCB view

I’ve created (and built) a board with an ESP-12 and a “free section”, somewhat like a strip board.

Now I’m using this board in various projects, where I’m adding a couple of components and some jumper wires to the free section to interface to the actual hardware for the given project.

Now I’d like to document the hardware, by adding the components, specifically to the PCB view of the board.
But I can’t find a way to add components or jumper wires to existing holes. Is this possible? Or do I have to rip apart my stripboard section first, and then repopulate it? that seems like quite a bit of work…

And maybe I’m barking up the wrong tree, and should I turn my board into a part in its own right, so I can use it as a “board” in the breadboard view?