You can set the ambient air temperature in the simuation options, but every element spawns at its own predetermined temperature so that won't get you very far.

If you want to make every particle in the save have the same temperature (let's say 25C) you open the console and enter

!set temp all 25C

Every element spawns with its own predetermined temperature (as Jerehmia said), and there is no way to change that besides with Lua scripting. It took a while to find out, but it appears you can do it with the following:

elements.property(tpt.element("vibr"), "DefaultProperties", {["temp":9999]})

This makes VIBR have a default temperature of 9999K. Unfortunately, this uses the tpt api, which I think is legacy, but I don't know what the alternative is.

@Jakav (View Post)

 The replacement for tpt.element() is elements.getByName() the easiest way to do it would be:

elements.property(elements.getByName("vibr"), "Temperature", 9999)

 

Thank you! Yes, that would do it.