bitwig 4.3 and BBCSO Discover

Although I'm retired after 30+ years on electronics and IT support industries, I'm quite new to DAWS. I recently obtained the BBCSO Discover plugin and its accompanying template as shown in the screen print. The BBCSO's onscreen keyboard works. I would like to create a templates with the instrument and and their articulations mapped to their respective Bitwig tracks. So far, this has eluded me despite hours of searching the Internet for a tutorial. Most of the tutorials start out with the sounds already mapped and good to go. Can someone please explain how to map the instruments and articulations to Bitwig tracks, or at least point me to a relevant tutorial?