Ent Mgr DR Activation Script

We are in the process of trying to automate DR activation and I was wondering if there was any sort of scripting interface to replace manually going into Enterprise Manager and activating DR? We have several problems with the manual method, not the least of which is user error. We would like to setup scripts to automatically activate DR, then another script to mirror back the changes and deactivate DR. I am fairly familiar with the PowerShell interface, but there does not seem to be anything in the command set.