Custom playbooks in franchise

Not sure what Madden 25 will be like in this regard, but this game needs to allow us to set a custom playbook as our team playbook in franchise mode. Yes I know that we can set custom playbook as the default in the main menu settings and that allows us to use that playbook in franchise. However the problem is if I am doing this and my custom playbook has formations that are not in my set team playbook in franchise, then I can't set formation subs for those formations.