New regsiter user - Sign UP step control - Can;t find the mod

[osix]

The idea is simple , i saw it on some o fthe Forum ..

When you click on Sign up or register .
Step 1
you are directed to a Page Filling in your EMAIL .
Step 2
Once you are confirm after checking your email . it will direct you from your EMAIL to a sign up page . where you fill in your User name and your Passwords choice .
and other related info . -

Step 3 -
after you sign up
you are directed to your Profile page where you fill in your Profile data the last .

can someone help me find that mod .

for Version 4.1.10