I am setting up a Partner II R4.1 system that a customer inherited when leasing a new office building. I have everything working but I think it might be better if the customer used it in "hybrid" mode since they have 12 CO's and they would like to have some buttons for DSS/BLF keys on each phone. The manual I have mentions the hybrid mode but does not tell me how to set it up for hybrid mode (default is key mode). How do I change it over to hybrid??

TIA
Timbo