Animation Editor copy & paste not working

Hi i try to copy and paste on particles section but it wont copy plz help me to resolve this issue

I am not if it's what you want, but I'll try. On the animations editor, on the top left you have a rectangle select tool. You select what you want to copy, an on top middle there is a white page, you click and it will copy what you've selected. Beside this tool there is the paste one.