Project management tool to combine standard modules and custom activities

That's exactly what I am looking for. What tool do you use to create the runbook? And what tool do you use to then "instantiate into each initiative" (and create a schedule / Gantt chart / timeline / budget)?

Using Spider Project we create the Library of typical fragments of our projects. Typical fragment is a small project describing typical work package. In new projects we create WBS down to the level corresponding to typical fragments and then replace its elements with the fragments automatically adjusting their volumes of work, duration, etc. Then new activities can be added and activities of different fragments linked. It helps to create project models fast and efficiently.