to IO 540 - believe it or not, but I did comment EASA FCL and have done other stuff, not just write messages on this and other forums...I am just now browsing EASA web page to find out which stage is the proposal right now, if I can use their nice tool to enter comments. Other steps are
TBD, MEP is a good suggestion
BTW, I believe you are from CS ;-) like me, CZ is just last 18 years....