Add mathematical equations to the DX key-in

So, this is cool. If you are Anti-AccuDraw, or are trying to develop some sort of keyin script and require to add some math to the DX= keyin, do this:

Load MicroStation's Calculator / Preprocessor with the keyin mdl load calc
Then keyin dx={equation}
Note that your equation needs to be enclosed in squiggly brackets as shown.

You can also do this with DL=, AA=, DI=, AS=  and more. 

For more information on the calculator, please refer to the following article:
MicroStation's Calculator Preprocessor

With thanks to Barry Bentley for sharing this tip.