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From: Ben Woods <woodsb02@gmail.com>
Date: Fri, 03 Apr 2015 05:46:45 +0000
Message-ID: <CAOc73CC7NH61NsLa423AZMxyLu7D8of1LKLZRvFgYbWYR_wOmQ@mail.gmail.com>
Subject: How do I specify port opt1 requires opt2
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I am working on modifying a port, and was wondering how do I specify that
selecting port option1 requires that option2 is also selected?

Note that in my example it is perfectly acceptable to have option2 selected
without option1.

Thanks in advance,
Ben