Simple Smart Folder question

[#1]

Can a smart folder be used to return values based on if a string is contained in a field?

Example:  Field called 'Building' has a value 'Main HQ building'.  Can I create a smart folder to return all values that has HQ in the Building field?  Not starting with or ending with but containing.

Make sense?

[#2]

Yes, just use the 'group by' section, that will sort the collections based on unique values for the EA.