Cant activate aome special formations

[Josephus Maximus Soter]

I recently got Barbarian invasion, and now i see that in EB that the hoplites can form Shielwall and night battles can apparently be activiated. the problem is when i have a hoplite unit on the field, even though in the unit card it says it can form shieldwall, it doesnt even have a button for it, and cant be activated. When i attack a faction, even though there is a night battle option, and even if all the conditions, which i know, are met where a night battle can be activiated, it will never be availabel. i didnt download a mod for all this it just happened wen i got BI.

Whats going on? for one thing i say the hoplited need shielswall, because other wise they fight in their odd, non-hoplite-like style