The Space-Phase 3 (SP3) framework proposes that space is a physical substrate possessingstiffness, coherence, and memory that becomes conditioned by matter and energy. Protomatter configurations arising from the substrate propagate along coherence corridorsformed by prior conditioning. Observations of high-speed unidentified aerial phenomenasuggest motion consistent with substrate-guided propagation rather than inertialpropulsion alone. This paper examines theoretical mechanisms by which proto-matterconfigurations may be influenced or redirected through deliberate reconfiguration of localsubstrate conditioning. Magnetic fields and directed energy are evaluated as potentialmeans of modifying corridor structure and coherence gradients. Practical constraintsimposed by propagation speed, corridor persistence, and conditioning strength arediscussed. This analysis establishes a theoretical foundation for interaction with substrateguided proto-matter.