To utilize the White Label extension, you will first want to install/activate it by navigating to WP-Client-->Extensions and clicking "Install" under White Label in that list.
See location here: http://screencast.com/t/C5KVTTYRdcj7
If White Label isn't displaying on this page for you, you can download the ZIP for it separately by navigating to your Control Panel ( https://webportalhq.com ) clicking the "Products" tab, selecting WP-Client, scrolling down.
See video here: http://screencast.com/t/ZtbAROhbuMGR
You can upload this ZIP file and install the White Label extension in the same manner that you originally installed WP-Client (be sure to use the API Key specifically meant for White Label, as it is different from the main WP-Client API)
Once you have the extension installed and activated, you will have a "White Label" menu under you main WP-Client dashboard.
See here: http://screencast.com/t/DddmQqcrDD
From there, you will have a multitude of options for rebranding the plugin:
White Label Branding
This setting will change all instances of the name "WP-Client" in the plugin to whatever text you enter in this field. This includes locations such as the top of the dashboard sidebar menu, as well as the name of the plugin (and it's Extensions) in the WordPress Plugins menu.
This setting allows you to change the description paragraph that displays for the plugin in the WordPress Plugins menu.
This setting changes the Author name that is displayed for the plugin in the WordPress Plugins menu.
Plugin Author URI
This setting changes the hyperlink associated with the Author name for the plugin in the WordPress Plugins menu.
This setting changes the hyperlink associated with the "Visit plugin site" link for the plugin in the WordPress Plugins menu.
Disable WP-Client Logo
This setting disables the WP-Client banner that appears at the top of the plugin menu pages. It also removes the support, translation, and main site links from the WP-Client Dashboard menu.
Admin Page Logo Content
This setting allows you to add text in place of the WP-Client banner mentioned above. HTML can be used in this setting to achieve more stylized text.
NOTE: Must be used in conjunction with the "Disable WP-Client Logo" setting, otherwise the text will simply overlay on top of the default banner.
Admin Page Logo Style
Use this box to enter any custom CSS you would like to use to apply to the "Admin Page Logo Content" text. This is optional, and is not required for the above setting to function.
Dashboard Sidebar Icon URL
Use this setting to replace the default blue "flow chart" icon used on the sidebar WP-Client menu. You will want to use a direct URL for your desired image, such as "http://example.com/wp-content/uploads/2015/02/new-log.jpg"
NOTE: For best results, we recommend a image with the dimensions 20px by 20px
Hide Admin Notices
Use this setting to disable the admin notices that periodically appear from the plugin, such as when an update is available.
Hide Help Menu
Use this setting to hide the "Help" menu tab at the bottom of the WP-Client sidebar menu.
Hide Extensions Menu
Use this setting to hide the "Extensions" menu from the WP-Client sidebar menu.
Hide About Tab
Use this setting to hide the "About" menu tab in WP-Client-->Settings