Can the "-" in the url be modified to "/" ?

Sample url:

http://t.test/home-demo/hello

Hello,
In a word No.
What you are describing with the hyphen is explained in the docs.
Super Modules and Sub Modules.
https://trongate.io/docs/information/complete-video-tutorial

However, you could convert and reconvert back so the framework can read it using segments.
But why would you?

Dan