Investors & landlords

I agree that inherited stock is considered a long term gain regardless of when it is sold.  Question... How do you enter inherited stock in TurboTax so it is considered a long term gain if it is sold 3 months from the date acquired?  Since I transfer multiple stock transactions (100+) from Merrill Lynch (ML) I hope to modify 30 which are inherited stocks sold 3 months from acquired date date.  How is this done?   Is it in the transfer information from ML?