QNH on G1000: I want to enter 1013, not 29.91

I usually fly in Europe and ATC always tells me what the QNH is. But when ATC says it's 1013 I see 29.91 in the G1000. Shouldn't there be an option to actually see 1013 on the G1000? This way I can never ever enter it manually. (Or am I mixing things up now...?)