Hello Cosima, thanks for purchasing Thefox!

Unfortunately there is no such option in the visual composer.

You would need to add a custom class to your row, for example :

bg_bottom_row

and then add this custom css ( thefox > styling options ) :

.bg_bottom_row { background-position:center bottom !important; }

This should do the trick.

Do not hesitate to contact us if you have more questions.

Have a nice day!

Regards.