New user- what do all of the buttons mean?

[monnie]

I downloaded TodayPlus and am having a great time using it.  I have also tried some of the great skins available through this forum.  But, there are still a few buttons which I haven't figured out.  Is there a guide or list somewhere to define these buttons?  
Also, which item is the "slider"? (the set of 9 buttons that reduce to one button when clicked on?)
Thanks,
Monnie