Adding eggs to incubator after 3 days?

[Ajtheox]

I was able to get 3 Ayam Cemani eggs a poultry swap as part of a silent auction and about a dozen other eggs. One of they other younger bidders really wanted some of the AC eggs also, so I split them with her instead of outbidding her. The seller thought it was nice, and decided to give us both a few more eggs for free today. Awesome! However, the problem is I will not get the eggs until 3 days after the first batch was started. I have a basic 9300 still air little giant incubator with an automatic turner. I'm not going to get another incubator, and wondering what I can do to improve the odds of the later batch w/o endangering the first batch.

I really don't like the idea of adding eggs later, but I'm also not going to turn down free AC eggs!

Thanks for any adivce