Instead of having a list of 7 or so manifesto choices, make up your own. Like, “I will put X amount of money into Y” or, “I will make Y people X amount more happy” If that isn’t possible, would there be any way to mod the manifesto choices so that you could make up your own, or change the existing ones?
you can change the existing ones I think, but interface wise, its not possible to add any right now.