Fair enough. I guess it can be implemented someday if enough people ask for it since the back end is there (PIO core). The only thing left I guess is making the repo have offline capabilities so people can mirror it too. But I think it should be left as a separate project.
It would be weird for say, a 12V-2A PSU to not be able to source and sink 2A. The current direction didn’t change from the PSU perspective, only from the load. If you have multi-rail power supply, then yeah it may have different source-sink capabilities for different rail