Project with Multiple Working Copies

Dear Sir or Madame,

first of all - as a long-term SmartSVN professional user let me take the chance to tell that SmartSVN is really smart and was worth every cent (I struggled about the price in the first place). Release 6 again brings some features I was looking for!

One of it is described as:
"Project with Multiple Working Copies (SmartSVN Professional)"

I am very interested in that feature as this maps exactly some of my projects. Hence I can't figure out how exactly I setup multiple working copies? I inspected the help but I only found grouping of projects (which was aleady possible with previous versions). Can you give me a hint where I can find a description (in the help)? I searched for "Multiple Working Copies" but this revealed nothing related... :-(

With best regards, Morten.