I can't answer the questions about mac os versions. There is no longer a pro version. There is only version 11. When Bondware bought out Poser they chose to have only one version that included everything in the pro version. The cloth room should work with older dynamic clothing. I haven't found anything it didn't work with yet.

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Available on Amazon for the Kindle E-Reader Monster of the North and The Shimmering Mage

Today I break my own personal record for the number of days for being alive.
Check out my store here or my free stuff here
I use Poser 13 and win 10