We've added commands for the Lutron Radio Ra 2 with RS232 as well as IP (http). For the IP device you may need the attached patch file uploaded to your unit (if you haven't already uploaded it for other http devices). This won't be needed after the next release, but for now uploading it once will ensure you don't have trouble with http devices.
Based on the trouble some of our Safari users had with the last patch, please don't use Safari to load this patch. :)