In order to enable horizontal scroll bar set showXScroll to OrgChart.scroll.visible. Aslo you have an option to use the mouse scroll set mouseScrool to BALKANGrapth.action.xScroll. Here is an example:
Now set the showYScroll to OrgChart.scroll.visible and chage mouseScrool to BALKANGrapth.action.yScroll
Pan/move, left-click and hold mouse button in the OrgChart JS and drag the mouse in any direction. You cannot disable the Pan navigation.
Chage mouseScrool to OrgChart.action.zoom. Here is the result: