[DeivideWinter]

Hi, everyone.
I am using Ansys Workbench 18.2, more specifically the Transient Thermal. I have a convection in which the Ambient Temperature needs to be a function that will depend on a variable that I'll call "Temperatute_Furnace".

But how and where do I define this variable? How can I do to this variable to change according to a equation during the simulation? Should I use Commands (APDL)? (if positive, how do I do it?)

I know I am quite lost, but I googled a lot and I didn't find neither the answer or a similar example.

Image of the screen in which I am working on:
https://uploaddeimagens.com.br/imagens/convection-png

Thanks.