Maverick, you can buy those white insulating pins, but, all you have to do is take out the center steel pin where you want power to stop/start. You can even use a toothpick to use as an insulating pin. Just make sure the center rails do not touch. You'll need to connect a wire to the insulated center rail to restore power. Then, all you need is a simple on/off switch to control the spur. If you don't have one, just Google it or go to Lowes or Home Depot. They are very inexpensive and don't have to be in any model train section of the store.
Jerry
