after some considerations, 2 sets of EA is better than 1.
1 EA will be for DAY trade (1300-2359) or 1:00pm to 11:59pm
1 EA will be for NIGHT trade (0000-1259) or 12:00am to 12:59pm
both will slightly different setting but almost same trading strategy.
each EA will stop trade when it is out of its timeframe.
setting are made best for M15 tf.