If you are using both Cubase and Spitfire BBCSO Core, here is a simple template that you can use. All tracks are already routed to their respective busses, and Expression Maps are included. It only uses stock plugins.
BBCSO Core - Template
.zip
Download ZIP • 456KB
If you only want to get the Expression Maps, here they are:
BBCSO Core - Expression Maps
.zip
Download ZIP • 35KB
Let me know in the comments if there are other Expression Maps or templates that you'd like to get.