Type ratings can be done on the wavier.
LPC/OPC checks can be done on a wavier in the sim as well.
You fill out a web page.
Get a log in
Fill out everything thats required pay your money.
They send you an email a couple of days later telling you what you need to redo.
You then have to get your finger prints taken before starting training in the sim. This can be done in the UK or by the local plod once you get there.
It is completly different for proffesional pilots sponsered by a company to do a type rating compared to going to do a PPL or MEP.
MJ