TGEA 1.8.1 guiInspector controls

Hello.

I'm making small editor for TGEA 1.8.1. I want to use guiInspector, guiInpectorGroup .... controls becouse they can collapse.

I have guiInspector control. Inside is guiInspectorGroup with StackControl. I have two problems:

1) When I want add for ex. guiInspectorField to StackControl it doesn't show up. Console:

<input> (0): Register object failed for object (null) of class GuiInspectorField.

2) When I save .gui and lunch game all guiInspectors control doen't show up. If i edit .gui in GUI Editor they are also invisible. But when i open .gui file from GUI Editor (Open Gui from file) controls are visible.

How can i use those controls?

Cheers,
Chris