Method Gnome.DockLayout()->add_item()
- Method add_item
 intadd_item(Gnome.DockItemitem,intplacement,intband_num,intband_position,intoffset)- Description
 Add item to the layout with the specified parameters.
int add_item(Gnome.DockItem item, int placement, int band_num, int band_position, int offset)
Add item to the layout with the specified parameters.