Where can I find the field about user names when registering?

[spacecadet]

We have a policy for people to use their names and not weird handles. Where do I find the form to edit where we can state this clearly? It will save us a lot of time. Otherwise, we have to send individual emails explaining, etc.

[.m.]

it can be done in different methods! - preferred method is :

MyBB uses templates system to display the contents.
template named "member_register" can be edited to add required content

see MyBB Templates related guidance

find below code segment in member_register template of the theme

<label for="username">{$lang->username}</label>

you can add required content after above code segment

[spacecadet]

Sorry. When I do this I an not getting any changes to the register page. Am I placing it in the correct spot? I am putting my policy words at the end of that segment above and before </span></td>

[.m.]

you have a different theme (GoDark) set as the default theme.
so you have to edit member_register template of that theme

[spacecadet]

you have a different theme (GoDark) set as the default theme.
so you have to edit member_register template of that theme

I was using the Defaul Templates. Do I have to use the particulat theme templates? Not sure I will stay with Go Dark.

[.m.]

at templates section of forum admin panel, you can see which templates set is used for a theme.
at themes section, theme used for guests is shown with a screen image. other themes have arrow image

you have to edit member_register template used for guests default theme