I tried looking up the answers to these questions but the more I read the more confused I became :)

My first question is, I have a scene that I want to use the some of the props in it in another scene and it says to zero them. No clue how to do that or what it even means. How do I remove the prop to use it in something else?

Next question, I'm having a terrible time with lighting and positioning when doing complete scenes is there any good tutorials on this anywhere. I've cked and I can't find any that's understandable or they all go so quick I don't get it...

Last question, is there any settings I can change to speed up my rendering times?

Thanks for the help in advance :)