I'm having problems with sheet tabs.  There are too many to view all when sheet and model tabs are visible, and the scroll arrows on the right side of the visible sheet tabs (bottom right of screen) do not function.  I can see and select any sheet from sheet drop down list when sheet and model tabs are turned off, but the listing is not sorted in a logical order.  I would like to re-sort.  The only sorting option seems to be "Move or Copy" when sheet tabs are visible, and that theoretically should work but when I use that I get what appears to be a random unpredictable re-ordering of the tabs.  Am I missing something or is this a software bug?  Using Mac beta version.