You can edit Step Sequencer rows in a variety of ways. You can copy and paste rows or row settings, duplicate a row with the same row assignment and row and step properties, change a row assignment, reset row values to a default setting, and delete a row.
In Logic Pro, tap the row icon to select the row, tap it again, then choose Edit Row Name.
Enter a name for the row, then tap OK.
In Logic Pro, tap the row icon to select the row, tap it again, then choose Copy Row.
Tap the row icon of the row that you want to replace with the pasted row, tap it again, then choose Paste Row.
When the copied and pasted rows are both fixed note rows, the Note and Octave values are ignored. You can copy and paste a row to duplicate the rhythm of the copied row to a row with a different drum sound or pitch. When you copy from a Melodic note row, however, the Note and Octave values are maintained.
In Logic Pro, tap the row icon to select the source row, then choose Copy Row.
Select the destination row (in the same or another pattern region), then choose Paste Row Settings.
In Logic Pro, tap the row icon to select a row, then choose Duplicate.
The row and the step settings are duplicated using the same row assignment. If you duplicate a row when Mono mode is turned on, the active steps in the original row are turned off.
You can change the row assignment for a row, including changing the row type.
In Logic Pro, tap the Row Assignment pop-up menu in the row header, then do one of the following:
For a note row: Choose Notes, then choose a different note value from the submenu, or else choose Melodic (if you plan to assign different pitches to different steps).
Note: When a pattern using a Drum Machine Designer patch is selected, the Row Assignment pop-up menu shows the kit piece names rather than MIDI note names.
For an automation row: Choose Automation, then choose an automation parameter from one of the submenus.
You can also change the row assignment in the inspector.
In Logic Pro, do one of the following to clear values in a row for the active edit mode:
Tap the Page Switch button 
in the pattern controls until you see the Clear button 
, then tap the button in the row header.
In the Step Sequencer menu bar, tap the Edit Mode button for the values you want to clear, tap the row header icon, then tap Clear for the active edit mode. For example, if Velocity mode is selected, Clear Velocity appears in the Row menu.
In Logic Pro, tap the row, then choose Delete Row.
In Logic Pro, tap the More button 
in the step grid header, then choose Delete Unused Rows.
You can also view and edit many row settings in the inspector.
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