Yes, arrays will work in EasyC ver 1 without anything special - all you need to use are the "User Code" blocks. The following code should work for using a variable as an array.
Code:
#include "Main.h"
void main ( void )
{
int example_array;
int example_array[4];
example_array[0] = whatever you want;
example_array[1] = whatever you want;
example_array[2] = whatever you want;
example_array[3] = whatever you want;
}
And here is a screenshot:
