Long press a Track Pattern Slot to show up the Track Pattern Slot Menu.
To clear Pattern content, select the CLR tab, and then choose “Pattern (Selective Content)”.
In the following dialog you can choose the content for the clear process. (by default, the complete Pattern is selected)
“Show Content Details” shows up detailed controls to select/deselect particular parts of the Pattern.
Select the content you want to clear, or deselect the parts to be excluded from the process.
Once double confirmed, the selected content will be cleared.
Get this Doc as PDF