Hey @dablyo ,
thanks a lot, great idea,  ! And thank you for the example too!
Have you got a link to the data set you are using please? I’d like to work on it too as an exercise ,
I’ve tried a few experiments with using multilabelmarginloss(), but I couldn’t get it to work ?
I could still train multiple, multi-class, classifiers on the same dataset. So for example I could train, 7 classifiers, one for each digit/letter in a number plate, but that’s not too smart because there’s some structure in the sequence of digits/letters, at least for UK number plates  .
Kind regards,
Ajay