ability to change order of galleries in multiple galleries page element

I have used the multiple galleries page element on several pages. I discovered that the order in which the galleries are presented in the block is the order in which I selected them. That's OK (but not ideal) for a static page, but I have one page I use to introduce new galleries on my site and I would like that page to be in the order of newest gallery first. Unless I remove all of the galleries from the page element and add them back again the new entries are added to the end.

I'd like to have the option of seeing the selected galleries in order and rearranging them.

--- Denise