Cell's math by logical criteria - models  
After having entered the data required by the dialogue box, we can save this model for future needs.
Thus, we will not need to enter the same data many times.
To save a model, do as follows:
1.- Press the Create Model button. Two options will be displayed: to enter the model's name, and a brief description of the model.
2.- Finally, press the Save button, and the model will be saved.
Clicking on the proper button will bring the dialogue box. Now let us enter data, as follows:
Later, you will be able to execute this model from the Models tool, panel of this adding, only when the workbook where the model was saved, is open.