If I understand it right, you want your EA to treat an unbroken series of indicator agreement as "one signal", rather than that each occasion of agreement is a signal.
One way to do so, is to make it a stateful EA and use a design as follows:
PHP Code:
static int last_signal = 0;
int signal = 0;
if ( <buy conditions hold> ) signal = 1;
if ( <sell conditions hold> ) signal = -1;
if ( signal != 0 && signal != last_signal ) {
// New signal series...
}
last_signal = signal;