The Cool (FEM) Analysis tab of the Thermoplastics injection molding solver parameters (3D) dialog is only available for models with 3D mesh types.
Here, you can select whether to run a steady-state cool analysis (Averaged within cycle) or a transient cool analysis (Transient within cycle, Transient from production start-up), using the Finite Element Method (FEM) solver. Once you have selected the type of cool analysis you would like to run, you can edit the process settings by clicking on the Cool (FEM) Solver Parameters button.