How to add a link to my page

hi, i need to insert my website link to a buttom, it will apear in the background only when the camera is focusing in it,
by the tutorials i can make somthing apears when the camera is lookin to a place but i don´t know how to insert an url

You can hide/show an HTML DOM element

So when the camera is looking at something, you can show the HTML link and hide it when it is looking away.

Don’t rush, development requires patience and dedication. Good place to start is to learn from tutorials and user manual: