To have the task pane initially hiden, you have to programatically do this.
You can do this using javascript on the load event of the page that contains
the ajaxviewer frame.
function GetMap() {
var frame;
frame = document.getElementById(FrameMap)
if (frame == null) {
frame =
I am finding the same limitation in MGOS 2.4 RC1 using Maestro 5.0b2. I want
to initially have the task pane hidden, but have a button available on the
toolbar to then open the task pane. I am finding that the only way to have
the open/close toggle feature is to have the task pane initially
