1. Currently this is not supported. Hierarchical Manager is specially created for hierarchical data and cannot be used for zooming and scrolling. We understand the need of back and forward functionality in the zooming and scrolling scenario but we cannot commit to any date or implementation as it is still on the drawing board.
2. You can limit how much it can be zoomed in by setting the min zoom range:
ZoomScrollSettings zoomSettings =
zoomSettings.MinZoomRange = 0.01;
I believe we had that issue (disappearing scrollbar) but our current build seems to be cured of it. Next week we are releasing SP1 for Q3.
If the SP1 does not fix the issue please do not hesitate to contact us.
Evgeni "Zammy" Petrov
the Telerik team
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