Any Demo versions or Udemy courses on HP ArcSight or RSA Envision?

kabooter

I want to get good grasp of above mentioned SIEM solutions but don't have access to either in my company. Is there a virtual lab or some sort of demo version or a full hands on intro course available that one can use to increase familiarity with these two?
in other words how do I gain good familiarity till laying my paws on HP ArcSight or RSA Envision?
Will cheerfully appreciate any suggestions.
Thanks in advance