Visability of Edge

What are things should be care of to achieve the visability of edge ?
I Read the docs but still can’t add edge panel in Panels settings
Repo : GitHub - A7MeDG0L0L/Prayer_time_panel
I added my question in Stackoverflow with my code : android - Visability of Samsung Edge Panel - Stack Overflow

I couldn’t find any documentation on this You can open a support request about this. They may be able to help.

Samsung Developer Relations