Hi Joseph,
We have analyzed your query. From that we would like to let you know that as of now we don’t have support to “limit the zoom level in the chart”. We consider this scenario as improvement and we have logged a feature request on this . It can be tracked through our feedback portal below.
Based on other logged tasks priority, this fix will be included in our volume 2 main release. We appreciate your patience until then.
If you have any more specification/suggestions to the feature request, you can add it as a comment in the portal.
Regards,
Srihari M