Paste Row Settings ⌃⌥⇧V
Change the selected row’s settings by pasting the settings from the clipboard.
Edit Step Sequencer rows in Logic Pro — Apple Support
In Logic Pro, click the row icon to select the source row, then choose Edit > Copy Row from the Step Sequencer menu bar.
Select the destination row (in the same or another pattern region) and choose Edit > Paste Row Settings from the Step Sequencer menu bar.