Cannot select 'Save as Model'

Hi all,

I created a very simple model in PA on top of a table in HANA SP5 (AWS box).

The model consists only of a simple HANA R-KMeans algorithm.

While following the user guide, I come to the point of saving the model.  However, this option is greyed out and I do not find a way to enable it.

Is this because I'm using the 30 day trial version?