Thanks for the feedback, for the light domain cleric I don't believe they get mirror image as a spell - correct me if I am wrong though. Page 3 should be set up to fit 1 page wide and height should be set to automatic (you can set this under Page Layout in the ribbon menu). For the spell attack modifier you can choose this under the Attacks dropdowns on the Start sheet, e.g. Spell Attack (Int) and it will show this on CSI. Refer to Example Character Zenith for details (and some cool formula used, go to Formulas > Show Formulas). For your AC + use the other armor in the armor section on the Start sheet.
Thank you so much.
The Mirror Image spell is indeed only a Trickery domain spell. My confusion came because I got the Spell Cards recently and the card is misprinted and doesn't say "Trickery - Cleric" on the bottom as it should, so I thought it was a general spell, which it's not. Not sure if I'll tell my DM that yet...
I got Page 3 to print right by manually adjusting the Page Layout. Height and Width were set to automatic, but it was set to print at 41% rather than as "1 page wide, 2 page long" so once I changed to set to that it worked correctly.
Attacks and AC + made total sense once I knew where to look.
Thanks again, great help.