How to link mara to drad

Hi all,

I have looked all over the internet and cant find a step by step guide on how to join mara to drad.

I have been told that drad-dokob ='mara', but i dont know how to change it to do this.

Please could somebody let me know which screens and actions i need to be able to do this.

I would need a dummy guide if possible.

Any help would be great.

Thanks