These buttons are URL redirect actions.     We’d reccomend that you implement these as buttons in the page title of your Contact Detail page.  The Page title will be connected to the Contact Model.   The trick is to get the full URL from a standard layout page, and then hack the URL and replace all static values with merge syntax. 

You can make the create /  manage buttons conditional if you create a UserModel on your contact detail page,  with a condition on the ContactId field of the user record.  If there is a UserRow returned - you can show the “View” button.  If none is returned you can show the “Create” button.  

The URL redirect code for Enable Customer User button looks like this. 

/005/e?ut=c &retURL=%2F{{{Id}}} &cntc={{{Id15}}} &Email={{#urlEncode}}{{Email}}{{/urlEncode}} &Username={{#urlEncode}}{{Username}}{{/urlEncode}} &Phone={{{Phone}}} &MobilePhone={{{MobilePhone}}} &name_firstName={{{FirstName}}} &name_lastName={{{LastName}}} &Alias={{{Alias}}} &Addressstreet={{#urlEncode}}{{Street}}{{/urlEncode}} &Addressstate={{{State}}} &Addresszip={{{PostalCode}}} &Addresscountry={{#urlEncode}}{{Country}}{{/urlEncode}} &CommunityNickname={{{CommunityNickname}}} 

(Obviously you need to take out the carriage returns) 


The Manage Custom User code is more straightforward,  but does call the UserModel that  you created for the conditional rendering. 

/{{$Model.UserModel.data.0.Id}} ?ut=P &amp;retURL=%2F{{{Id}}} &amp;id={{$Model.UserModel.data.0.Id}} &amp;cntc={{{Id}}}<br>