Are there any helpers available in the Value field of the Device State node for simple path expressions on payload references before they are saved to the device attributes?

There are some math helpers, yes. You can find a list of all the custom helpers we support here, and a list of built-in Handlebars helpers here.

Awesome! Can you next two math helpers using multiple and subtract? E.g. {{multiply 1.8 value}} and then add 32?

So if I understand correctly, what you want is to multiply the value by 1.8 and then add 32 to that result? If so, you can nest helpers within helpers like so.

```
{{add (multiply 1.8 value) 32}}
```

Just like in the normal mathematical order of operations, the statement inside the parentheses will evaluate first.

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Yes that’s it! It was parantheses instead of curly braces that tripped me up.