This technical report sets out a series of tools which I hope will be useful in structuring, planning, and coordinating expansive workshops across a Change Laboratory research-intervention. By definition, a Change Laboratory research-intervention ought to empower participants to expansively identify, expose, and aggravate contradictions in their social activity of work and learning: we therefore plan, all the while hoping that we will engender expansivity to the point where our plans will be rejected. A structure for our research-intervention’s workshops deserves careful organisation yet inherent flexibility, allowing us to prepare for participants’ progressively expansive work, to organise and coordinate double stimulation tasks, to predict and trace the engendering of their transformative agency. The structure described below has provided such a handrail and segue, for both participants and for myself as a researcher-interventionist: assisting in the preparation and mediation of double stimulation tasks; provoking and tracing agentive and expansive social interactions; and providing arrangements for data curation, reflection, and reflexivity.