I'm working with a client to get rid of spelling errors in their content. After making changes to Spell check configuration and then to the DITA source, the errors have moved from over 10,000 to under 400.

I was glad to see that I could configure Spell check to ignore words with digits and mixed-case words.

A question: Can I configure some additional options, for example, to ignore words that contain an underscore? words that contain a period?