Notes in EWQL Play never stop sounding (OT?)

Thanks, Paul. No, I have not set up the Expression Maps for Play but only changed the routing. I thought expression maps were a future project for Dorico. I see a link to expression maps for EWQL Symphonic Orchestra and EWQL Symphonic Choirs at the link below. Is there a set of instructions somewhere online that will tell me how to install them in Dorico?