A performer in a main ballroom can physically use items placed on either attendant stage even though those objects remain floors away.
When Donut stands on Ballroom A's stage, the goodwill system lets her pick up and operate tools positioned on the attendant stages below. A wand can be aimed and fired, a recharge scroll read, and sheet music handled while the physical objects remain on the first floor.
Approved stage magic is limited largely to illusionary evocations such as Torch. Hole remains blocked until the ballroom control restores general magic. Potions cannot be consumed through the overlay, so the charm dose must be smuggled physically into the main room, likely within Katia's mutable mass.
A performer grasping translucent copies of props whose real forms sit on distant lower-floor stages.
The overlay lets Donut execute the recital and use sponsor tools despite inventory restrictions.