Ok here is the tutorial :
First configurate your dedicated server before start :
Then Click
Start Server and wait to load :
After that go to the console tab and tape
pb addbot :
Then wait one or two minutes and go to the player tab and there you will see the new bot that has been added :
So you see that is no so hardly.
In the same way you can add more bots or control them with the others EPB dedicated server commands.
I think that after this tutorial you will have no more problems.