"append" text to sticky note keyboard

Just learned a new trick that can copy and paste text into sticky note by lighting the the text, then command + shift +y. however, this keyboard shortcut alway create a new sticky note. I do see the reason why though. at the same time, would like to know if we also have a keyboard to append the text into a old sticky one. if there are multiple stick notes, the last one being edited is use to append the text. How can we do that using keyboard shortcut?