Create New User - Email Activation Link - 24h - Activity Mail add Link File

Hello, first time, sorry for my english.
But i need create new use with empty password.
Nextcloud send Mail, with Activation Link but this ink expires at the end of 24h and I would need to modify this delay.

And i have other question, when File is modified, Nextcloud send mail, is good but, i need make link with this email.

Where can I change these settings?

Best regards,

Sorry for my english

Did you ever figure this out? I"m fairly new to Nextcloud, but there has to be a better way to create a new user and sign them up, right?