Script to Cause Engine Failure At Specific IAS

Apologies if this is not the correct place to post this question.

Question: how do I write and implement a LUA script (assuming this is the correct tool) to cause a specific engine on a light twin (Carenado Baron B58) to fail at a specific airspeed (IAS)?

Background: The Carenado Baron responds correctly to the P3D Engine X failure (on/off) command when a hardware button is assigned to it. I'm guessing then that it might be possible to "wire" this command to a script to trigger as the a/c accelerates during takeoff.

It would be useful to be able to do this to facilitate my CMEL checkride with VATSTAR.

Thanks in advance.