Selecting an Insert instruction appends the Quick Text or Text specified in the macro to the end of the text already in the field. In social publisher actions, the Insert instruction is useful because you can retain the @mention and add text after it.
Selecting an Insert instruction appends the Quick Text or Text specified in the macro to the end of the text already in the field. In social publisher actions, the Insert instruction is useful because you can retain the @mention and add text after it.
https://help.salesforce.com/articleView?id=macros_insert_quick_text.htm&type=5