I made a thinkScript modification of the PPS study on the ThinkorSwim desktop platform. Normally the PPS shows two proprietary "moving averages"?, with accompanying Buy and Sell Arrows.
I had the script Hide the MA's, and changed the show Arrow to a PaintingStrategy to where it would indicate the Price at the MA's crossover. Give me a shout if you'd like the script adjustment. Glad to share.