Step 1 – Download and install Welcome Splash
Download the Welcome Splash plugin .zip file from the Welcome Spash product page
(You must be logged into your active customer account to be able to download the latest version of the software).
After you download the zip file navigate to your WordPress admin dashboard > plugins > add new > select the .zip file you downloaded > upload that file and activate the plugin
(These are the same steps for any plugin you download on BoostWP)