Can you normally mount concealed showers portrait or landscape?

[WaterTight]

Customer wants a new concealed shower rather than repair current one.
I've actually never installed a concealed shower before.
There is good access to the other side of the wall as it's a cuboard (although that means I'll need to construct something to support the valve, any suggestions welcome) but the first thing I've found is all advertised concealed showers with rectangular plates seem to be picutred orientated portait style. The one I'm replacing has a plate mounted "landscape."
Can you normally just turn the handles round to suit which way you want to mount them or is that going to cause issues?
Thanks

 

[ShaunCorbs]

If you can find one without pictures / writing on the plate then yes mount upside down if you want

 

[WaterTight]

Thanks. That's a good point....plate would need to be plain.
Cheers

 

[king of pipes]

No it doesn't look at Roper Rhodes shower valves I fitted one which can be mounted in either orientation. Kop