how to set the next button to come back when image finish

hi I'm complitely new to modx and MaxiGallery so forgive me... I've to modify the next button fo an existing an working gallery, I have to set it to come back at the first picture when the gallery reach the last one. I already read the documentation but without any result anyone can help me??

I post here the code to the call to to MaxiGallery


and I will post also the code of the other configuration file in needed.