First time user - how to seup BLE message on my MDBT42Q,2v04?

How do you want the text to be displayed? Next to the URL?

The text comes from the web page at that URL's title I believe.

I did actually have an example where I did require("ble_eddystone").advertise("goo.­gl/D8sjLK#"+doorOpenings);

It might be that you can actually have a script on there that changes the page's title based on the text in the link.

Otherwise if you only have a limited set of text you want to display you could just change the url:

require("ble_eddystone").advertise("http­://www.david.com/a");
require("ble_eddystone").advertise("http­://www.david.com/b");
// etc