How to check if object is corona proxy using maxscript?

[Monkeybrother]

So, another beginner's question: like the title, how can I check if an object is a cProxy using maxscript? Thanks!

[zdragas]

This will select all Corona proxy objects in the scene:

select(for o in geometry where classOf o == cproxy collect o)

please note that if there is corona proxy in a closed group, entire group will be selected

[Monkeybrother]

Thank you.