Members App

I was reading this article: https://docs.grabaperch.com/addons/members/examples/registration/ and it states " It can collect any information you need by adding inputs to the registration form template – all we require is an email address and password."

I added some test fields to a registration form, these are visible on the registration page, but when I submitted the form there was no additional data? Where does that data go if I want to add more information? I am essentially trying to create client information in much the same way a CRM would.

My code is this in the registration form:

<perch:form id="register" method="post" app="perch_members" type="default">
    <div>
        <perch:label for="first_name">First name</perch:label>
        <perch:input type="text" id="first_name" required="true" label="First name" />
        <perch:error for="first_name" type="required">Please add your name</perch:error>
    </div>
    <div>
        <perch:label for="last_name">Last name</perch:label>
        <perch:input type="text" id="last_name" required="true" label="Last name" />
        <perch:error for="last_name" type="required">Please add your name</perch:error>
    </div>
    <div>
        <perch:label for="email">Email</perch:label>
        <perch:input type="email" id="email" required="true" placeholder="you@company.com" helper="PerchMembers_Members::check_email" />
        <perch:error for="email" type="required">Please add your email address</perch:error>
        <perch:error for="email" type="helper">That email address is already in use</perch:error>
    </div>
    <div>
        <perch:label for="password">Password</perch:label>
        <perch:input type="password" id="password" required="true" match-with="password2" />
        <perch:error for="password" type="required">Please add a password</perch:error>
        <perch:error for="password" type="match">Passwords do not match</perch:error>
    </div>
    <div>
        <perch:label for="password2">Password again</perch:label>
        <perch:input type="password" id="password2" required="true" />
        <perch:error for="password2" type="required">Please repeat your password</perch:error>
    </div>
    <div>
        <perch:label for="text1">text1</perch:label>
        <perch:input type="text" id="text1" required="true" />
    </div>
    <div>
        <perch:label for="text1">text2</perch:label>
        <perch:input type="text" id="text1" required="true" />
    </div>
    <div>
        <perch:label for="text1">text3</perch:label>
        <perch:input type="text" id="text1" required="true" />
    </div>
    <div>
        <perch:label for="text4">text4</perch:label>
        <perch:input type="text" id="text4" required="true" />
    </div>

    <div>
        <perch:input type="submit" value="Register" />
    </div>
    <perch:success>
        <p>Thanks!</p>
    </perch:success>
</perch:form>