The Council of Europe, which oversees the ECHR, not the EU, "... are using political consensus to signal to the European Court of Human Rights that the interpretation of the law must adapt to modern migration pressures".
There is no desire to rewrite the ECHR.
You can read all about it, if you want to educate yourself, here:
A mixed up of two or more things becomes a mixture.
So your poor grasp of English, should have read, "As opposed to your mixture of two individuals or are you 3 or 4"