Reorder windows on z-axis

[pablosichert]

Hey there,

super cool window manager, thanks for making it public!

Is there a way to move windows further to the back / front? The use case: I'd like to position two windows on the same location and toggle between them by changing their order on the z-axis.

I've searched the (very well made) documentation, but haven't found any indication to do so. Did I miss it somehwere?