How to re-train a player?

I am so sorry guys if this has been posted before but i havent seen it.

I am chelsea manager and am thinking about taking the real madrid job which has been offered to me and i want to re-train Cristiano Ronaldo as a complete forward. So could someone please tell me how to do it?

On his profile there's a 'training' tab at the top. There's a drop down menu there called 'new position'.

You can only train new Positions. Like ST, RW, AMC etc. Complete forward is a role.

To change a position, go to a player profile>Click training tab>There an option for retraining position. Select ST or whatever.

To change role, go to tactics> select player>Choose.

Thanks guys, I know coplete forward was a role i just meant thats what i want to play his as but how do i re-train as striker. So thanks guys.

Also how long does it take to train them for a new posistion?

Dont retrain him as a striker, his stats would all drop.

Also how long does it take to train them for a new posistion?

Depends on his current ability to play there and whether he gets (many) games there.

Also depends on a players versatility (which is hidden).