If you simulate the design and the editor show the message "**It takes 2 minutes for the interval in every simulation.**", please wait 2 minutes for the interval, and try again. Because of the simulation will spend CPU resource, and our server resource-limited , we must set this rule to guarantee it is running well for every user. As before we set the rule is 50 times per user a day, at now that is 60/2x24=720 times per user a day. In the future, we will provide the local simulator, like the local auto router.