Yes. To program crystals just place the crystal on any SES print. However, the crystal will not hold the charge indefinitely. It will eventually dissipate and require recharging. The more prints you use, and the longer you let the crystal charge, the stronger the charge will be and the longer the crystal will hold the charge.
This charging process will also work by simply placing the crystal next to a speaker playing any SES audio.
Yes. You can clear or clean crystals using Golden Proportion or Pure White Light. Just place the crystal on a print or near a speaker with an audio playing. The longer you leave it, the deeper will be the clearing.