How to Make Library Symbol Unique?

[suicidePills]

I copied a symbol from one .FLA to another via cut/paste. When I check the symbol source in the .FLA that the symbol was pasted to, I can see that it points to the source .FLA. However, I want to make the symbol unique to the .FLA that it was pasted into. That is, I want the source of the symbol to be its parent .FLA.

Does anyone know how to do this?

Thanks!