Normally, modifying an instance modifies the symbol and other instances. However, you can modify an instance without affecting the symbol or other instances by first breaking the link between the instance and the symbol.
To release an instance from a symbol:
1 | In the document, select the instance. |
2 | Choose Modify > Symbol > Break Link. |
The instance reverts to a group. The symbol in the Library panel is no longer associated with that group. | |
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