Minus 1 from me. Generate and Play Button by design, function and name does exactly as it's designed, function's and named. Computer ownership isn't a PG Music problem. Having to send annoying stop commands to Reaper scripts isn't a PG Music problem. At some point, users, new and old alike need to at least use something in BIAB as it's designed, functions and named.
I've tested and a workaround to this grave issue is to press Generate and Play as normal but follow Musocity's protocol and hit the Stop Button before playing starts. Jim's wish is only pertinent when a user wants to pause and separate generation from playing. Adding a Stop to the normal sequence of generate and play works flawlessly.