You can do it by creating local user account.
Add Account_Overview page in navigation and then login. you will be able to see button to add local user account.
Hope it helps!!
Yes, you can do that by creating user roles in App security.
For eg: Teacher, trainee and etc...
For creating the user, you can use the Mendix default account overview page which is present in the administration module
I hope it helps.
That solved my problem. Thank you both!