Precipitation Calculator
The Precipitation Calculator is available with three elements if you do not have the additional Precipitation Module (TC-PRISMA) license. With the Add-on Module you can use all available elements. See Available Options with the Precipitation Module for details about this and other options available with additional licenses.
A Precipitation Calculator allows you to set the conditions for, and perform, a precipitation calculation. You can add the calculator to the System Definer directly (right-click and select it from the Create New Successor menu)
There is also a Precipitation template available under Non-Equilibrium that you can use to quickly set up a simulation.
Once you have added a Precipitation Calculator, the Configuration window has Conditions and Options settings tabs where there are many available conditions to set and then continue the settings with the specialized Plot Renderer.

Set the conditions for your calculation that define the Matrix phase and Precipitate phase. Choose the Calculation Type.
Precipitation Calculator: Matrix Phase Settings

Modify Numerical Parameters that determine how the conditions are calculated.

There are also unique settings available for this calculator once you add a Precipitation Calculator Plot Renderer.
Working with these simulations is an advanced topic. It is recommended you review the documentation and videos available or search for a specific topic.