Here are my 2 new box-file layouts in 4mm. The first one is a dock scene with an operating Airfix crane (Maerklin crane kit-bash with separate digital controller) and Bilteezi warehouses, the second is a street scene with Langley houses and a railway halt.
Both box-files (and the ones to be built in the future) are connected with short pieces of track on railway arches. Track are Peco Code 100.
DCC controller is a Lenz LZ100 with a Hornby booster and a Lenz LH100 hand-held controller.
Both box-files can easily be closed for storage. The layout is easy to transport and set up.