How to save layouts in a particular order

I have opened a chart twice and formatted one to display daily data and the other weekly data. Then I select FILE | NEW | Layout and add both charts. Then I select FILE | SAVEAS | filename. However, when I close the layout and reload it, the positions of the daily chart and weekly chart are transposed.

Make sure the Auto-tile option is not selected.  Then re-arrange and resave your layout.