No. I couldn't actually find any procedure in that link: just a discussion of something someone had sent by e-mail.
The procedure I found was:
When you have the 4 digit emergency
1- hold central locking button down red immo light flashes slowly count number of 1st digit of immo code and release.
2- hold down central locking button and count 2nd digit and release
3- repeat for 3rd and 4th digits
4- when all numbers entered, ignition off and hold down central locking button immo lights remains constant, press key on/off quickly towards interior mirror. Hopefully plip will resynch.
Once immo light starts flashing -ign on/off and hold c/l button down again until red light remains constant and try again,may take a few goes.
I got it from Test for Renault Key/Immobiliser failures (emergency recode)
which is in the Clio FAQs.