I need to read ksd file I have, change few values and save it as another ksd file. I have latest version of Massive(1.5.11) and can't do these. Is there way to do these in current Massive or should I have to downgrade Massive?
You don't need to downgrade everything - just install a standalone copy of an older version then give it a different name so it stays on your system for conversion purposes, then restore the latest versions.