Hi @b2hstudio
Thank you for your feedback.
For your first question regarding customizing the sign up password reset request email, I believe without changing the template that will not be possible.
As advised above in regards to the provided knowledge article, you can follow the Auth0 Forms approach since that way you will prompt new users to change the password via the form which you will be able to customize accordingly. That way, you will not send an email to the users and also be able to customize the password creation flow for them.
For your second questions, it is great o hear that you managed to send an email via Actions, for you to be able to send a verification link alongside it, you can review our documentation about Sending a Email Verification Ticket. This way you will be able to generate a verification link and add it to the email you are trying to send.
Additionally, you can follow the same approach for changing the passwords since in that documentation you have the option to generate a change password ticket as well.
If you have any additional questions, feel free to let me know!
Kind Regards,
Nik