Thanks for the tip. I was avoiding hierarchical schematics because my version of KiCAD doesn't seem to implement the concept very well. I often ended up with strange inconsistencies, so I gave up. I suppose this is better in newer KiCAD versions (?)
How I do placement now: deleting part of my schematics, then copying the remaining components to the PCB layout, then undoing to get my schematics back, delete another part of the schematics, etc.
Regarding a graphics tablet: I've thought about it, but then I miss the scroll-wheel which is absolutely necessary for zooming in/out. Are there tablets with scroll wheels?