When you say "Attribute Text" are you referring to Labels that you have created or things like the Point ID, Elevation, Code, and Linestring Labels that you can just turn On and Off while working? The Former are controllable in the Label Style Managers and those are the ones that we recommend for labeling for final drawing purposes, the others are just there to assist while editing a drawing / model / project etc..
The latter can have their sizes changed and their fonts etc - that is under Support - Options and at the base of the options dialog, the fonts that are defined there control these labels and grids etc. but you cannot rotate the labels (they are oriented in relation to the lines from which they are derived.
Can you give a reason why this is important to you, that may highlight what your issue is here with the way that things are managed today at least.
Alan