This region allows you to tune
menu parameters. To see info about the perameter click on
button on the left of it.
Parameters are modified by entering values into a value field.
You should modify parameters carefully if you change them.
For example, an integer parameter can only accept numerical values
and can't accept text and special characters.
You can copy, cut and paste parameters' values.
In other words, you can do the same actions as with standard HTML forms.