406 HDI estate yr 2000 on a W plate - Peugeot 406 handbrake adjustment - Tips

How do I adjust so = both sides when only seem to be able to adjust on offside.

406 HDI estate yr 2000 on a W plate - Peugeot 406 handbrake adjustment - Peter.N.

Does it not use a continuous cable so shortening it adjusts both sides?