How to set automatic line wrapping in NetBeans

When I first used NetBeans (8.2), I opened the editing page and found that the line cannot be changed. After some exploration, the setting was successful. Now summarize the setting steps:

Step 1: open tools > > options > > Editor > format Settings, as shown in the figure:

Step 2: remove the check box and modify the parameters of automatic line wrapping

Change the parameter value of [right margin] to 0 to eliminate the red vertical bar of the editing page (currently do not know the role of the red vertical bar, looking awkward)

Step 3: click "OK".

When Baidu looks up the setting method, it is said to be modified in "tools > > options > > Editor > > format > Category selection to wrap", as shown in the figure:

After some operation, it was found that it had no effect. The line wrapping settings here are more complex, so they are not fully understood for the time being, so they are used in accordance with the default settings.