The late John Maton (teddytoot) developed a layout switching system and made a demo layout to show case how it worked. <KUID:37096:101825> Model Rail Control Panel Demo.
I worked with John to develop these ideas further before he was taken from us all too soon. My Trainz Model Railway layout, - DWW MR O gauge 'Lynborough' Broad Gauge-FINAL V2 <KUID2:768291:12786:1> makes use of this system and it works fine. I don't know of any other MR/TMR layouts that have used this system that have been uploaded to the DLS.
Should you download 'Lynborough' be warned, - this is a very large 19th century UK model railway layout covering two standard Trainz layout boards.