You can do this and we have done this before when a customer has a VERY special need, ie, we developed a special custom field plugin that contains more functionality for the Component type of data (eg lookup in a remote database or a cascaded field that replaces the Component field). Just be sure you hide the standard Component(s) field in the field configuration or it would get very confusing.
Hope this helps. If can explain more fully the reason you want to do this we can probably help. If its a custom field plugin you need developed please send an email to email@example.com.
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