To do that you first create each options text and store them as a building blocks. Then you add a building block gallery content control and point it at the relevant category. The Maxey link that goes into all the gory detail is http://gregmaxey.com/word_tip_pages/..._autotext.html

It really isn't as complicated as that whole article appears since it includes a huge amount of background info and code samples. If it gets overwhelming, just read the sections Creating New Building Blocks and Building Block type content control

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Andrew Lockton
Chrysalis Design, Melbourne Australia