Abbyy Engine Form Fields

I have Abbyy Engine working and successfully ‘read’ text from screen. Now I need to OCR/ICR small scan of one field in a handwritten form. The form has a box for each character (capital letter) that is handwritten. Unfortunately the result is unusable.
Did anybody implemented something similar with UiPath and can help with example? How do I use UiPath to instruct the Abbyy Engine to switch to FieldLevelRecognition profile?

Hi maybe you could come give it a try to the abbyy Flexi capture.