The instant property y2 corresponds to the position of the bottom-right corner stored within a rect operand.

The read access to this property returns the y coordinate of the bottom-right corner of a rect operand. The write access modifies the y coordinate of the bottom-right corner of a rect operand. Other components (x1, x2 and y1) are not affected by the modification. For example:

When working with Inspector you can easily access, evaluate and modify the y2 coordinate. For this purpose select in Inspector the desired rect property or attribute and click on the small triangle on its left side to expand and display the subordinated values: