Shoutbox

In terms of editing XML files, there isn't a built-in editor in the Plus! script editor, so I recommend Notepad++.

Also, you can enable and disable controls based on whether a checkbox is ticked like this:

js code:

---

Interop.Call("user32", "EnableWindow", /* window */.GetControlHandle(/* control ID */), /* boolean */);

---

For example, to enable a button called "BtnOk" when a checkbox called "ChkConfirm" is ticked:

js code:

---

function OnAboutEvent_CtrlClicked(PlusWnd, ControlId)
{
    Interop.Call("user32", "EnableWindow", PlusWnd.GetControlHandle("BtnOk"), PlusWnd.Button_IsChecked("ChkConfirm"));
}

---