You can add Prompt and Negative prompt to additional configs

[Gerschel]

If you find the need to add Prompt and Negative prompts to your config, you can do it by adding
Prompt and Negative prompt to your config.
To see other labels that work, go to the Print tab and hit Gather, it will populate the dropdown box with choices it can see.

But, since we have no way of distinguishing between labels that are the same between different scripts, if there is a collision, it will use the latest one it knows of.
There's no way gauranteed way around it at this point without script writers considering this fact.