It’s good to know that some of you follow code changes too [;)]
You’re right, I added a [font=courier new]videoSpeed[/font] attribute (in m/s) to home environment this weekend and made it available in Beta 10 tonight. I also completed outline 3D drawing with a new System property [font=courier new]com.eteks.sweethome3d.j3d.ignoreDrawingMode[/font] that can be set to [font=courier new]false[/font] if you want Sweet Home 3D to take into accout the [font=courier new]drawingMode[/font] attribute.
As I didn’t request help for translations yet, maybe I could add some Speed and Frame rate fields below Video format in Video pane, without making it too crowded. Or wait for a future version, in particular because more development might be required to manage the localization of the speed unit for our American friends... anyway, feel free to use it in your plugin and for other users, to set the speed in the Home.xml entry.