I’m a Nortel CS1000 person, i can fumble through things in the BCM but with my PBX mindset I have trouble on these key systems... I need to add a second extension to an assistants phone.. I need to have her bosses extension ring her phone and her bosses at the same time... On PBX I can just put both extensions on as many phones as I want, but I don’t think I can do that with a BCM, so HELP? 