thanks for your quick reply - I would be surprised if nobody ever suggested this, unfortunately I wasn't able to find the Threads/Ticket due to wrong key words I searched for.
As far as I'm concerned, a side view would be sufficient for the first step. In the Feature Request #484 side view is also asked for tools to document wiring, pipes, etc.
Perhaps when my home is build, I will have some time and see if my Java-knowledge is sufficient to build a plugin for my request - we'll see
@ UbuntuBirdy - thanks for your confirmation
Greetings