I played around with this briefly but it isn't working as I expected. Looks like there's more nuance to it than I initially thought (i.e., the style is applied in the following paragraph, which isn't a paragraph - little confusing). A little more guidance would be helpful.

Also, this technique doesn't appear to be something automatic. I'd prefer to avoid the necessity of going through every line formatted with a specific style and make that section of the style bold up to the period. Am I misunderstanding the technique involved here or what?