And Or condition selection – Streak – backtesting – beragampengetahuan – Beragampengetahuan

My requirement is if there are 3 condition in my strategy as follows:

1
AND
2
OR
3

1 and 2 should all meet at a time Or 3 alone.

Streak gives an option of AND / OR when I enter second condition onwards, but no option is given for first condition. SO how to do this?