Please help me figure out how to customize this way of spawning enemies!

So I watched a video on spawning and this is the conclusion. (In picture)

So what if I wanted to add a boss wave at say wave 5 or spawn different enemies while at the same time stopping those enemies that had spawned previous waves. I have tried all sorts of variables and mess but I never can get it to work. Hopefully my image is posted so someone can maybe tell me what I need to do. please and thank you!

In the CreateEnemies function you can add conditions for curRound, ifcurRound=5 you can spawn the boss and different enemies. Not sure you what meant about stopping those from previous waves as it looks like you need to destroy all enemies to go to next round.

That is what I don't understand. Bc the round that is repeating is spawning those same enemies over and over again. How do I make it spawn different types of enemies that I create. No matter what I do, it always spawns the same type that is in the first part of the function for createenemies.

Yep as mentioned above add conditions in the function 'curRound = a value' that you can use to split off whch enemies to spawn in which round. Currently you don't filter by any conditions so it runs that event every time you call the function.

So clearly I have been looking at this way to long to where I know I will not get this on my own. I have got to see an example b/c what ever I do its not working. I am completely missing something and its driving me crazy. lol