Ventana software support forum

how can i place a slider under a constant variable? in the user guide i keep seeing this but in my version i can't find out how to place them. thank you.

I managed to create a model which seems to be functional, but one Level var gives me an error. it sais that the var is not used in the model.
How should I make it functional? And how could i create charts that reflect the real situation of the var to be displayed?