Plasterboard question

[Twirlywoos]

Hi

I need to feed wire through the battons of an already plastered wall. I've seen some videos online that explain the procedure but since they are American or Australian they have different terminology so what will I need to do this please?

I think I need:
- Sheet plasterboard (They only come in one size apparently)
- Plaster finish?
- Some kind of glue
- Thin wood piece
- Some kind of tape
- Sand paper and applicator

These are the videos I'm taking guidance from

 

[Twirlywoos]

Thanks, fed the ethernet cable through the wall and have left the support on the plasterboard to dry overnight. I will put the plasterboard I cut out over it tomorrow and finish it of with some plasterboard tape and finishing compound.