Phoenix Model Comparer-not possible for text mode?

If I choose to write my model in the text edit mode, I don’t seem to be able to select this model in the Phoenix Model Comparer. Is it the case that textually edited models can’t be compared, or if not, how can I select it in the comparer?

Hello, The comparer should pick up text models for population analysis. However, note that the comparer is not designed for non-population analysis so if your population box is unchecked then the comparer will not work. Please let Pharsight Support know if your population box is checked and this is still occuring. Sincerely, Ana