Where is OCR in preferences

I just d/l’d Pro. Want Pro to OCR scanned docs from ScanSnap. However I do not see the OCR tab in the preferences. How come?

You will not find it in DEVONthink Pro-OCR is part of DEVONthink Pro Office.

Given this will my scansnap1300 create the OCR PDF that will be stored in DevonThink Pro. Or do I need to get DevonThink Pro Office?

ScanSnap can be configured to OCR scans itself, and save them to the DEVONthink Global Inbox folder. See the “File Option” tab of ScanSnap Manager. DTPO is not required for this feature to work.