From the info block -- I don't think anything has changed here --- your best to use Alias types and make the rules yourself, then when you place them in a specific order you want, they will stay in that order. Any of the "auto generated rules" will always sort based on the Firewall 'Auto' Rule Order.
"Refer to the blue infoblock 'List Action' icon in the IPv4 tab for details on how to use 'Alias type' (ie: 'Alias Deny') instead of 'Auto generated rules', if required for your network design. Select the 'Order' of the Rules Selecting 'original format', sets pfBlockerNG rules at the top of the Firewall TAB. Selecting any other 'Order' will re-order all the rules to the format indicated! "
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