Selectable Town with hatch & text visibility

[floydboeding]

Hello,
My company has state maps on our cover sheets and I want to create a dynamic block for a user to select a specific Town where their project is located and to have that town hatched with MTEXT using visibility states.  In order to minimize a huge drop-down list of potentially 200-300 towns, I was thinking of first having the User select a County, then a Town.  I'm trying to use Double Lookups but am running into trouble somewhere, as I haven't used them before.  Does anyone have experience with something like this or could point me to a good example resource?

[Menion]

Hello,
may you please describe your question in detail? Btw. are we talking about the Android Locus Map app?