Many LVGL pages on TASMOTA

I want multiple LVGL pages in TASMOTA and unfortunately the example only shows a page with buttons (“Prev”, “Next”, “Home”) without providing documentation how we can press the Next button to define a new page with buttons and relays.

In the LVGL example in TASMOTA there is no explanation of how to change the page. LVGL - Tasmota

In particular I have used this code and added six buttons that control six relays, but I can’t change the page to add more.

You can help ?