I may be a little late to the party since MTH has (or will soon) discontinue the DCS Remote. But there are millions(?) of them out there so here is a holder for the remote so you don't have to set it on the layout (oh my - a mortal sin).
This one is pretty simple. It has three flat head screw holes to attach it to your layout or table.
You can download the 3D print files from: