Checking this box will enable the automatic submission of your subscription orders directly to your broker. This means that any orders generated by your strategy will be automatically sent to your broker without requiring your manual approval.
If you do not check this, trades will need to be manually approved or rejected. This is useful for strategies that require manual intervention before trades are executed. For example, you may want to review the trades generated by your strategy before they are executed. Or it may be useful when you are getting started and you want to review the trades generated by your strategy before they are executed.
Some strategies may not allow auto submit and as a result you may not be able to enable auto submit. If auto submit is disallowed by the strategy, the Auto submit checkbox will be disabled and you will not be able to check the box.