How do use emacs-state in certain modes?

[jenia.ivlev]

Hello.

I want to use emacs-state in term-mode and undo-tree-mode.
How do I achieve that?
I tried:
    (add-to-list 'evil-emacs-state-modes undo-tree-mode)

This didn't work for some reason.

So again, What should I do to be in emacs-state in term-mode for
exmaple?


Thanks for your time and kind concern.