Accidently deleted a default panel on MATE desktop

[Richard Owlett]

The MATE desktop has a default panel at the bottom of the screen with 
three functions
   Hide windows
   Open applications
   Switch work spaces
I deleted it -- YES there was a warning message ;<
I can create a new panel with those functions.
BUT cannot force the "Hide windows" button all the way to the left as it 
is in the default.

How can I recreate the default panel's geometry?
TIA