Please don't ask for every single module format that has synthesized instruments if it can be added - the answer will always be the same as with AHX/HVL. We can only support sample- and plugin-based formats. t0ast relies entirely on a custom synthesis engine. And yes, the same applies for Klystrack. BRT support is in theory possible but it's also a format that is more advanced than OpenMPT in several ways (both trackers extended from IT but went into different directions), so it's almost guaranteed to be a lossy conversion. It would probably be way more sensible to ask BeRo to add internal format conversion in BeRoTracker since his engine can already deal with both BRT and IT files. That way, BRT could be converted to IT (in a lossy way) inside BeRoTracker.