@Cernel All 0 movement units are already selectable so nothing changing there.
Not sure if you misunderstood what I was saying. Are you aware that is the case only if the property "Selectable Zero Movement Units" is true?
I'm not actually sure if that is relevant only for the human player and not for AI, actually (since the AI doesn't have to manually select). This would be interesting to know, if only as a curiosity.
To make an example, what I was saing is that, in Total World War, in order to be able to select, thus move, the "material", you need to generally make all movemnt 0 units selectable, that means you will be able to pointlessly (and a bit confusigly) select also factories, plants, fortifications, etc.. I just said that would have been cleaner as an option per unit, like you can make selectable only the material, instead of as a property for all movement 0 units.
And, then, I just added a couple of way to hack it, that is leaving the "Selectable Zero Movement Units" false and have the movement 0 units you want to select being actually movement 1 and giving -1 movement to self or, now that you have territory effects, having them as movement 1 but having a -1 additional malus in all land territories, so that way you will both achieve having a clean selection of only the relevant units unable to move on their own on land, as well as achieving the feat of freely loading them on sea transports.