According to the book Opening the Mountain, "Bill and Laura Kwong had moved to Mill Valley and began a little 'put away zendo.' It took place in a neighborhood hall. Every morning, mats, cushions, and altar were put away so other uses of the room could happen.
The book "Opening the Mountain" describes how Bill and Laura Kwong set up a modest meditation practice in Mill Valley. They designated a neighborhood hall as their space for meditation, which they named a "put away zendo."  They would regularly rearrange mats, cushions, and an altar to accommodate other uses of the room.