You could just send master clock to Cubase; to do this… and have Cubase on a second monitor…
I think we’re stretching the abilities of Renoise trying to make it a professional-caliber multimedia production tool. I’d much rather see it become a 100% stable MUSIC production tool.
I’ve made a couple of songs for my last film project (a travel documentary sort of…). I find it much more comfortable to make the song first and then sync the video to it. It feels more natural then the other way around… of course it depends what kind of project you’re doing I guess…