Hello blender friends.

I would like to rotate multiple objects by random, but in their LOCAL axis. NOT global.
I already know the random transform function for objects, but it's working always for the global axis only.

Bit I would like to rotate random around the local z axis e.g.

In Softimage XSI in 2005 it was possible to type in mathematical functions into the input fields. There were a function like this **r(1,10)**. It has generated a random value between 1 and 10.

Is this possible without using python?