Mosaic panel layout

So I am working on a large mosaic - 7X7.
But I want to get the panels which are higher in the sky first and I can not seem to fins a way to rearrange the numbering on the panels - so I can tell it to get the panels highest in the sky before they hit meridian and then go for the next highest panels as they also rise.

I am unsure if there is a renumbering option available, and it would almost make sense for it to grab the higher objects over the lower ones as it lays the plan out - but there does not seem to be an option for prioritizing this.

Any suggestions or help (it may be a simple thing to resolve but I have not found it yet).

Obviously I can rearrange the panels in the CSV, which is what I am going to attempt to do tonight.

Thanks for your thoughts/comments.