This video demonstrates the following points:
- How to add a Facebook app button to your page after you removed the button from your page. Note that this will only work if the app is already installed on your page but you don’t see it’s button on your Facebook page.
- How to move the app button to the first row to improve it’s visibility. The trick is that you have to swap its location with another button. There is not other way so far.
I did not add narrative, but I hope it is clear enough that you can simply follow my steps to get your job done.