Read this article to know more about potential problems when planning with Lionel O FasTrack manual and remote O31 switches in SCARM. [>>>] 
See these proposals for O gauge Christmas track plans, suitable to be assembled around the Xmas tree. [>>>] 
See these proposals for O gauge Christmas track plans, suitable to be assembled around the Xmas tree and placed next to the wall or in some of the room corners. [>>>] 
If you want to use a high quality turntable in your O-scale track plan, take look at the products of Millhouse River Studio and download the SCARM library file from this post. [>>>] 
See one interesting O-gauge layout, designed in SCARM and build in a basement with Lionel track material. [>>>] 
See these proposals for O scale Christmas layouts, suitable to be assembled around the Xmas tree, placed in some of the room corners. [>>>] 
This is a proposal for multi-gauge display layout in three different scales, mixed together in one track plan, created by Ace from OGR forum. [>>>] 
This is the O-scale layout, originally designed with SCARM and sent by JumpJet. Dimensions: 3926mm x 1085mm (155" x 43"); Complexity: medium. [>>>]