Command Line Parser Library enters the 1.7.x branch. This new alfa introduces changes into parser core.
Using the new OptionArray attribute you can store multiple values into a field array. See the release home for details. Download sources from this page or from source code control repository.
Obviously there are other improvements as the ones made to CommandLine.Text.HelpText type: word wrap and more control on options text block.
Please also check the progress in documentation section.
Good command line parsing!