How to add desired character to existing language in tesseract 4.0

[xunm...@gmail.com]

I found the a desired character file in source training data in chi_sim. So I guessed that in chi_sim.traineddata there is information of desired character. How can I add my unique character like ↑↓ into trained language?

[Brian51]

On Tuesday, January 10, 2017 at 8:01:54 AM UTC+1, xunm...@gmail.com wrote:

I found the a desired character file in source training data in chi_sim. So I guessed that in chi_sim.traineddata there is information of desired character. How can I add my unique character like ↑↓ into trained language?

See 

https://github.com/tesseract-ocr/tesseract/wiki/TrainingTesseract-4.00---Replacing-Top-Layer-Example