This would be a unique feature wich integrates a pattern search in the the review tool.
Maybe just a button which is clickable as soon as a corner pattern match is detected which leads you to the position in JE. Would make the JE more connected with the site and easier for everyone to study new joseki 
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Maybe a little Book icon.
And the button has three modes:
- empty board 100% joseki match (green color)
- already some stones on the sides, Josekis might be not suitable in this situation (orange color)
- no pattern recognised (red color)
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