We need to push this into production. But it seems we need to get the updated Michael Holmes’ 3rd edition of his Apostolic Fathers which Wallace's book is keyed to. Logos has the 2nd edition printed in 1999. https://www.logos.com/product/3937/the-apostolic-fathers-greek-texts-and-english-translations
Unfortunately Accordance has both the Wallace book and the latest Holmes edition out already. See Daniel Wallace's comments from his blog below. https://danielbwallace.com/
"So, I contacted both Logos and Accordance to see if they might be interested in having this work in their line-ups. They began working with Kregel.
Just a few weeks ago, Accordance released its version of the Lexicon.
Logos has it available as a prepub file; you can find it on the Logos website here .https://www.logos.com/product/46901/a-readers-lexicon-of-the-apostolic-fathers
There are of course differences in how each program works, though both Logos and Accordance are available on Mac and PC. I think the biggest difference is that Logos does not have Michael Holmes’ 3rd edition of his Apostolic Fathers (Greek and English), while Accordance does. The Reader’s Lexicon is indexed to Holmes’ 3rd edition.