Solid Edge What are the Three Options for 'Copy to Working Folder'?

In the Solid Edge Standard Parts - Parts Management Administrator are three different settings for the 'Copy to working folder' option.  The option can be unchecked or checked as usual but there is also a black little square.  What does that mean?

1. PartFinder is the user interface inside Solid Edge assembly that allows user to place a Standard Part.

2. For further information about Standard Parts see Solid Edge Standard Parts FAQ collection

3. For further information about working folder see Solid Edge Standard Parts working folder