entering the thickness of the wood for the cutting bit

[myshop1044]

The machine is asking for thickness if the project. How do you put.79 into the keypad.
I entered 79 and it said it was too thick to cut.
Which key is the decm. for .79

Perry

[myshop1044]

I found my own answer in the manual and on the keypad after I wiped it off .
so much dust on it I did not see the Decm.
I need to clean the keypad more Ha.
Perry