Crescendo decrescendo

When I input a crescendo or decrescendo, CC11 on the Key Editor changes, but how do I modify this data? Also, is it possible to set the degree of change for crescendos, etc.? In my case, the change in the crescendo seems too small, so I usually have to modify it later.

Just an initial answer, not sure you have seen where this is or not:
In Play mode, lower zone (Window menu > Show lower zone)
1 click
2 dynamics