Replacement message for change and reset password

Hello.

We've got a FortiAuthenticator, version 6.4.7.

We've published two Self-Service portals: changepassword and resetpassword. They work fine, but we'd like to customization the action pages. I mean, we'd like to custom:

- Post_login change password page ("/portal/post_login/change_password_remote/?portal=3"):

- Reset pwd page (/portal/reset-pwd/?next=%2Fportal%2Fselfservice%2Fresetpassword%2F):

They are not shown in the menu Replacement messages, so it is not possible to custom them.

Could you help us?.

Thank you very much.