formRecycler is a Google Forms Add-on that allows you to choose one question (or many) to copy from a Google Form in your Drive to the current Form. Just click on formRecycler in the Add-on menu and choose the Form you want to copy the questions from in the popup window. You can select as many questions as you want. Click insert and my minions will insert your chosen questions at the bottom of your Form.
Currently, it will not insert Youtube videos from Forms!