Solved by HMuys in post #2 
              
              
                the simpliest way if found is to adapt the config.json and adapt the ‘id2label’ dictionary to map to IOB 
“id2label”: { 
“0”: “O”, 
“1”: “B-DISORDER”, 
“2”: “B-DISORDER”, 
“3”: “I-DISORDER”, 
“4”: “I-DISORDER”, 
“5”: “B-FINDING”, 
“6”: “B-FINDING”, 
“7”: “I-FINDING”, 
“8”: “I-FINDING” 
}, 
Hope this…