Ok I tried this. This is just like my experience ok, don't jump on me 😀 

So I used the gui thing and built my blocks. I saw where to enter the time. The search function was cool.

But I don't get how to just get this snippet out. It seems like the split kit wants to make the entire rss feed. I'm self hosting castapod, I can't really replace the entire feed.

So I just need this podcast value split. I couldn't figure out how to get this in the split kit.