These two Pending Buy Open Condition and Pending Sell Open Condition inputs are optional and validate the opening of pending buy or sell orders (set by the A:SET_PENDING_ORDER   action) through set of conditions, similarly to Buy/Sell Open/Close Conditions  . Thus, you can use these inputs to set the conditions you want to be verified true before allowing the opening of the pending orders. The supported conditions/functions/actions are the very same supported by the Buy/Sell Open/Close Conditions  . If these inputs are empty, pending orders will open at pips distance/price defined, without any preliminary checks.