I am the Administrator of the Account/s on the CRM

I want to change the password of the users  from my login ... Sometimes people chages but we do not want to deactivate teh accounts we have. Or periodicaly we want to change Login/password Is there a procedure for this?

For example I can deactivate them...but cannot find a way ...

I want to do changes from teh Administrator page of course-

2- Can I change the Login as well (exemple: change teh email for another one, after created , and from teh Administrator page. Is tehre a procedure-