I wish to purchase anHO remote switch track #44561 for a dead end siding to store a second train. Will I need a second terminal track to turn the power off and on for the siding?

Is the remote HO switch track #44561 the same size as a 9" straight track #44511 and a 18" radius curved track #44501?

Will I need extra short tracks to add the remote switch track #44561?

Thanks
Larry