You can find some control over the step increments in Tools/Options/Navigation (on left hand side of the window).
You can find a description of each of the fields under Help Topics / System Options/ Navigation.
The rotation is also based upon the origin of the part, so you may need to set T for target of rotation.
Please direct future technical support inquiries towards our OPEN MIND support channels. We are available to serve you via email, telephone or WebEx - whatever best suits your requirements. I will contact you off line to assure that you have what you need in the short term.
OPEN MIND Technologies USA, Inc.