Send me problems with this script here, so I can work on fixing these faster.
I'll update this with known issues.

- Adding text to the CustomData that isn't a single integer breaks the script.
Yes I don't know how to filter for a specific line in the CustomData, so for now, know that you're limited to that
- I wrote X in the CustomData and the block has X screens but the script breaks.
In programming you start counting from 0 so you'll have to write X-1 (will fix that on request)