Google keep: Copying image from one note to another

I am using Google keep on an Android 11 device. I am wondering how I can copy an image in Google keep from one Google keep note to another. How can I do this? I'm asking because I received an image via WhatsApp and could not share it to a specific already existing Google keep note but had to share it to new Google keep note. So, I shared it to a new Google keep note. However, when I selected the image by long pressing on it in Google keep, and then selected copy from the three dots in the upper right hand corner I could copy it, but then did not find the way of pasting it to the other note that already contained images there. Thank you for your help