Right-click on your project and head down to Properties and then on the left-click on the settings button.

Enter the Name, type, scope & value of each setting you want to add.

Note: The Application Scope is not editable during runtime and will always stay the default value you set right now.

If you want to set, for example, the value of a variable to the same as a settings value, you can do the following:

string Name = Properties.Settings.Default.SettingName

You can change settings values in runtime (If you set the scope to user). This can be achieved easily, by doing something simmilar to this:

Properties.Settings.Default.SettingName = "Some Value";
Properties.Settings.Default.Save(); // Save all edited settings

If you don’t include the last line in the example above, then the values edited won’t be saved!