Andy,

You can set up a command button so that its box type and color make it simply appear as blue text, then in the enter programming change the label color to faded blue to indicate that it had been clicked. Functionally this is very similar to a hyper-link.

It wouldn't be a "double click", but then most hyper-links are also not double clicked. Also, most true hyper-links simply describe a destination, rather than a set of instructions.