Agis I think our own forum member Aubrey might have a tutorial of how she uses magnets to hold 3D terrain in place using the workworks paper buildings.
I know she uses them embedded into the foam board and under the paper sidewalks to hold street lamps etc in place. She has The Forsaken website. Let me know if you need the web address and I will find it and send it too you. She used to post alot in the gothic horror forum.
Darkoath