How to allow users to change chart data in Visualizer
NOTE: This is a premium feature, activated only in Business version. If you purchased Visualizer Charts and Graphs Premium then you need to have both Visualizer Charts and Graphs Lite & Pro activated to take advantage of the plugin's premium features.
To allow users to edit chart data, go to Media > Visualizer Library.
Click edit on the chart already created, and on the next page, click permissions.
In "Who can edit this chart?" Click on Select Users, select All users, and click on Save Chart button.
By this, anyone can edit data from the frontend of the chart!