Currently the customer set up a rule to assign the orders with shipping description "STESMA" to "Rendr-Fast", however, they will only keep the rule like this at a certain time range: between 6am-2pm. Between 2pm-6am, their staff will manually change this rule, keep the same condition, but change the action to assign courier to "Australia Post On demand". They are hoping to set up the rule based on the same condition but to different couriers for the different time range.