inputs:
Length1(13),
Length2(21);
variables:
EMA1( 0 ),
EMA2( 0 ),
Difference ( 0 ) ;
EMA1= Average(Close, Length1) ;
EMA2= Average(EMA1, Length1);
Plot1(EMA1, "EMA1");
Plot2(EMA2, "EMA2");
should get you on your way.
(I'm not sure what the E stands for in the Mov...