Hi Greg, 
Please see below.

Two follow up questions:

1. Can I terminate my main instance, then start a new Cloudman
instance later and enter this share string to get back to where I was?
 That would save some money vs "stopping" my main instance.
You should always terminate a cluster. Stopping an instance is actually not supported within CloudMan...

2. If I need to update files on what I've shared, would I just do the
updates, create a new share instance and delete the old one?  Is that
the best way?
Exactly. 

Thanks again,

Greg
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