Learjet 45 Nav pages

Hoping someone here can help me with this.

Flying the Learjet for the first time yesterday, The MCDU/FMS screens display the first page of the flight plan, but I couldn't find a way to advance to the second page, I take it the Next and Prev keys are not enabled?

Thanks.

Found the answer....RTFM as usual! or in this case RTFWiki.

Press FPL on the FMS.