Please let us know if you have tried the following....
Given you have 3 photos on the Timeline Expert view, side by side, A B C, and you want to copy D so as to paste the copy between B and C.
a. Highlight the clip that you want to copy; go to Edit Menu/Copy and click on Copy.
b. Move the Timeline Indicator to the junction of B and C.
c. Go to Edit Menu/Paste Insert.
d. What happens? Should be the line up of A B D C.
Please let us know if that worked for you. There are usually more than one way to acchieve a Premiere Elements goal. Let us start here.
Looking forward to your follow up.
Thanks for your response. That is the problem I am having, there is no PASTE INSERT option in my Edit menu, only PASTE (which overlaps the clips) and PASTE EFFECTS AND ADJUSTMENTS (which does nothing). Is there a reson why I don't have a PASTE IMSERT option?
I think I got the message now.
And, I am 99.9999% certain I have the answer based on what you just wrote.
The answer is "you are in the Quick view, go to the Expert view".
Quick view does not have all the features of the Expert view.
Please let us know if that worked for you.