Add an image as first image of a model

Hello,
I was able to upload and add an image for a model.
Now I am not able to order it to be the first image for a model.
Someone can help ?
Thanks

You can not yet specify the order of the photos. That enhancement has been requested.

@FrancescoPretelli
If you want to make one image as your (default) image.
Go to : Edit Model.Then click the Details tab. Go down to photos. When you reach the photo you want click the very small circle next to "Default Image".
When you're done, don't forget to click the red tab at the right bottom "Save changes".

To add to that, your image has to be listed as being of the default material for you to make it the default image.

Thanks to all.
Now I was able to set the photo as default image by material.

Kind Regards,

Francesco