LCM 1.2 What's new video, highlighting Content Management:
https://www.youtube.com/watch?v=xARq4j5mRh0
How to build a multi-developer environment with vRA 7.4 and LCM 1.3:
vRealize Automation with Infrastructure Blueprint - Configuring Multi-developer Environment - VMware...
vRealizing IaaS as a Code Multi-Developer Story with vRealize Automation and LifeCycle Suite Content...