Q: How to edit mapping parameters ? There is no EDIT button.
A: To edit an item (ex: "Local Port"), make sure that HTTPort is stopped and click the parameter value:
+ Local Port
| +-- [ 80 ] <---- click here
Here "click" means pressing LEFT mouse button ONCE while the mouse pointer is
positioned inside the bounding rectangle of the value, then immediate RELEASING
the mouse button, and WAITING about 0.25 sec. with no mouse movement until the
edit box appears inside the rectangle.