Installation of the module is completed within minutes.
- Extract the module archive which you downloaded from the client area.
- Upload the module to your WHMCS installation.
- Go to the WHMCS Admin backend, click on Setup → Addon Modules and activate the module.
- Click on "Configure" and enter your license key.
- Set the option which meets your requirements.
- At "Access Control" select nothing.
If you have a custom theme, you may want to edit your template by yourself.