What you need to do is to modify the template of the login control and map it in Sitefinity. I've attached the template, where I've changed the text property of the username label. To map it to the login control navigate to Administration
and fill the form as following:
: ~/UserControls/LoginControlCustom.ascx (the path to your template)
After that, go to Advanced properties of the login widget and in the DestinationPageUrl
field enter the path to the page, where your login control should lead. Also, to restrict access of anonymous users to that page, you need to set permissions to it, so that it would be visible only for a certain user.
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