I found the following ‘smart rule’ during a google search. I don’t know if it’s valid.
I don’t know how to create the 3rd (any of the following) line.
Please let me know if it’s possible… and how to achieve it.
option-click the + symbol (which will turn into … as soon as you depress the option key); this behaviour is described on page 93 (that is the section Sidebar: Smart Group and Rule Editor) of the current DEVONthink manual.
Edit to say hello and welcome to the forum 
Thanks. It worked.
I read that secton, but missed the option key.
Welcome @mrbilll20
I’m curious where the Google search pointed you to.
https://discourse.devontechnologies.com/t/automate-ocr-on-a-folder/52555This text will be hidden
Okay. Thanks!