You can easily customize (disable/add panes/add columns/add rows) the user registration view.
If the view is not searchable, it means it is not installed yet. This is because the view is only installed when you visit it, because we do not install any unused views for optimization. Just visit the page you want to access and search again.
For some reason when you attempt to save an edited element, the system might ask you for a pick-list under "Field specific" tab, just select "Reserved Pick-list".
You can also add rows and columns if you want the vendor registration to show in 2 columns or 2 rows.
In this tutorial, I'll show you how to set the user registration in 2 columns.