It would be rather easy to do but it's still a bit of work because it has to be tested on CPU and OpenCL (RTPATHCPU and RTPATHOCL differ a bit, so we have to make sure this setting is consistent). Would be a good job for a new programmer who wants to contribute to the addon.
So it's not a top priority for me right now. You can creat a github issue so I don't forget it.