Jeff Slarve has provided an updated version of his nifty BitList class and template.
From the article:
The idea behind BitList is that even in an era when storage is cheap, it sometimes makes sense to store binary values in individual bits rather than wasting whole bytes. The BitList template slices LONGs up into 32 separate fields, each of which can be represented by a checkbox in a scrolling list. This may sound a bit tricky, but the template makes it child’s play.
The new source zip is version 3.

Source: ClarionMagazine