Hi. Where can I see how to set this plugin.

This plugin does not have a configuration, just grant the permission.

server is full, 50/50 or this plug will allow +1 player to enter? if not where can I reserve slots?

Thanks for answer

From the plugin's page:


bypassqueue.allow -- Allows player to bypass Rust's connection queue and player limit

Last question
I can not understand: For this guide, the permission epicstuff.use will be used as an example -  what should I enter as permission. 
Thank you for your understanding

The permission used would be what I mentioned in my previous post, and as shown on this plugin's page.