I am building a model of my house with a view to using it to explore different changes as part of a major redecorating project. I have done some work using sketchup, but have run into problems because (for example) adding a skirting board affects the wall, such that removing the skirting board leaves a gap at the bottom of the wall. If the alternative skirting board is smaller, then I have a gap.
I would like to model each room as a simple box to which I can then add (as different scenes?) different skirting boards as well as other fixtures and fittings.
Also I would like to be able to have a view where the walls go semi-transparent to I can show details of wiring or plumbing, but still see enough of the walls to see where the wiring or plumbing is.
I'm a bit of a 3D noob, but have used sketchup enough to get frustrated at its limitations. How would you recommend using parent / child, groups, layers or scenes for this?