I thought Micro Trains/Kadee made a under the table uncoupler magnet that used a push button switch? I do believe they mount under the track similar to the GlassHalfFull web site.
Kyle,
Here’s a link to what Dthurman was describing: http://www.kadee.com/htmbord/page86.htm
Note that Kadee makes it for HO. I don’t know if it can be “fudged” for N.
Bob
NMRA Life 0543