dear sir ,
how to make a button to "run,pause,continue" on one button(same button)
because my extend keypad only hace 10 button 
 
 

You are really only needing two functions, ie Start and Feedhold.
I am not sure how Mach sees buttons from such devices as extended keypads but if you can get a Brain to look at it and also look at the LEDs for Start and Feedhold then you could have your switch do what you want.
 For example if the switch is active and the Start LED is active but NOT the Feedhold LED then you would have the Brain output a Feedhold.
 If the switch was active but Start LED was NOT but Feedhold LED was then you would have the Brain output a Start signal.
Hood

thank you
i try it