[JoeWass]

I can just see someone telling you to write an applescript to do it...

Short of manually rotating the text, I don't think you'll be able to do that. The way I understand it, 'text' is of a similar class to 'shape', whereas your question is wishing it were descended from 'line'.

Lines have certain behaviours, one of which is fixing to a magnet / magnetic surface, but the handles on shapes do not. You only have to look at the symbols that are used to represent those handles: shapes (including text) have square handles, lines have diamond-shaped handles to indicate their different behaviours.

To get a diagonal line, you specify two points and OG draws between them. To get a diagonal shape, you specify a shape and a rotation on that shape. Different concepts.

So that's why I don't think you'll be able to do that in its current incarnation.

Joe