This article explains how to create your Splash Page from templates, assuming that you've already an SSID with Splash Page Editor (as here described: How to create an SSID )
How to create a new Splash Page from templates
In order to create a new splash page from templates, please follow these steps.
STEP 1
In your Classic Hotspot Cloud Management, click on " WiFi SSID " then click on "Splash Page" tab

STEP 2
Click on "Edit Splash Page"

STEP 3
Click the arrow in the upper left corner

STEP 4
Click on CREATE NEW

STEP 5
Click the template you want to use

STEP 6
You have created a brand new splash page. Starting from the chosen template, you can edit your splash page as desired. It will be saved automatically every 5 seconds.
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How to create a new splash page