OK, to do you a favour, I'll make an educated guess.
Whats in that area? A picture of young Valery? An implicit 3D plot? An odesolve block using pseudo units?
Anything can be in that area, but there is nothing we need to put in that area we would need for the calculations you have shown.
So my best guess is that the area is empty.
But it seems the time for those tricks is over :-(
The new tricks apply to Prime but unfortunately I can't do any of them: using scripted components in Prime, or a prefix operator, or showing numerical results as fraction, or hiding symbolical keywords, for instance, or creating an animation of a Prime plot. OK, Prime's plot quality would not justify an animation - and we moaned about Mathcad's plots being mediocre and far away from publication quality - we didn't know Prime then!