Simply drag the folder BenjisHardwiredLogic into your GameData folder.
Description:
Benjis Hardwired Logic…
...is a set of tools to predefine staging actions in your rocket.
Launch Clamps can release after a given time (whenever you think the engine is spooled up).
Fairings can automatically be jettisoned at a given altitude.
RCS and Decoupler can be activated at a set time after launch or prior to reaching Apside.
Engines can ignite at a set time after launch or prior to reaching Apside. An engine can also be cut when a set Apside is reached. An Apoogee Kick Motor can either Burn-Out, Circularize or Cut-Off at a set Apside.
On-Screen appearing messages for all events can be turned on / off (in VAB and Flight).
Check out the awesome flowchart in the pdf provided.
About
A ksp mod to "hardwire" logic into rocket designs.