@Capeman i believe @fieldofcows and others are trying to find another video player to use instead of the OMX player. I do not believe that OMX will ever support overlays. In the mean time, i suggest reducing your video file sizes, use heat sinks and a fan on your pi, and set your screen saver to 1 or 2 minutes to go to a black screen. This should eliminate the heat issues while still allowing you to use the VLC player.

@ChoccyHobNob unfortunately not that I know of. There has been some work done on enhanced filtering with a SQLite backend and system order may be part of that but I'm not sure where that's at, it's a large change and may be a while before implemented

wait, sorry i needed to restart retropie, it seems to be up now. thank you