Forum user Kurld developed and maintains the PEBKAC Industries LES, a plugin-powered parts pack that automates abort procedures.

He has offered to tweak his plugin to provide similar support for the SDHI LES, but this would require some additional modifications on my part:

• Change LES ModuleEngine to ModuleEngineFX (#112)
• Add new PEBKAC PartModule with the correct engineID reference

Added required third-party PartModules and tested with Kurld's test build:

• Some minor manual configuring is needed in the VAB/SPH, but that was for adding the PEBKAC jettison trigger for the BPC to an Action Group
• After an abort is triggered, the LES pulls the pod away from the rest of the rocket
• The LES/BPC is automatically jettisoned at a certain altitude / when the bottom of the pod is pointing downwards
• PEBKAC doesn't seem to be operating the pitch control RCS thrusters on the LES
• Normal staged jettison of the LES/BPC is unaffected

Kurld is looking into adding the ability for the plugin to use RCS for pitch control.

This will do for now.

RCS for pitch control will come later.