Not sure what you mean but I wouldn't do that. If I am going to be managing each value separately, I would save them to a field by itself. The only reason why I would save it all to one field is if I using it for history purposes only. Personally, I would find that it looks much nicer if it was in separate fields, but it is your plugin after all.
If you really want to do this, you can use
strtok
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