Problem creating a new guide in a .ai file
I am trying to line up text in the following document using guides (if that is possible, which I would expect it is in illustrator as it is in Photoshop) I next the text to be lined up for all 12 months of the year - 3 in the top layer and 4 in the remaining except the last of one only.

However, the "create guide" is greyed out for some reason.

I have tried resetting to Illustrator default settings but that doesnt seem to help.
Can anybody provide solution or a workaround for me please. It would be much appreciated.
Sabina
Tokyo, Japan

