Can't add more than one folder as an existing item

I am trying to add multiple folders which exist under one folder all at once to an existing javascript project and Rider is doing it only one folder at a time. 
I select Add -> existing item. I select the folder and select all its subfolders in the right pane. Then I get a prompt whether to copy, move or addlink. The prompt is showing it's doing it for one of the subfolders. I select Copy and that folder only gets copied and it doesn't copy the rest of the subfolders. This happens even if I select the parent folder in the left pane in the folder tree.

Also, every time I repeat this copy action, it doesn't remember the last folder I copied from. So I have to paste the full path. 

Is there a way to copy a bunch of folders as existing items in one action?