Is there a (done before) sliding window option for the KF?


I have a small cutout window I made to swing up & inward to allow photography. It works okay, but I have intention to make a larger opening & have arrived at a full window concept (the top section of the door window) horizontal slider to accomplish this.


If there is already somebody out there with a slider window, I would love to hear from them to share info about how to do it.


Otherwise, if nobody has done this, I am looking for a source for a shallow "U" channel that can be used for a slider groove. So far, I've found advice such as Tractor Supply, Home Depot & I have found some in McMaster Carr.


Anybody have any ideas please?


Thanks