I'm doing my first steps with CartoOSM in TileMill. But since it has about twenty stylesheets (.mss) I can't see them all in TileMill because (depending on Window-Size) just the first six stylesheets are shown.
So how can I see the others ? I haven't found a way, yet!
Thanks for your answers!!
This is a known bug in Tilemill.
One easy workaround for this is to simply edit your mss files in your preferred text editor. Once you save your changes in your mss file, tilemill will re-render the map based on your changes to your mss file.