Some R items have settings that will show up in the Object inspector while some others have
as well. If an R Item is nested under a visualization, its dynamic properties appear in the "Inputs (Nested)" tab.
For example,
The R items with input settings are the ones created by the Inputs Javascript code. When nested, you will see code in the Inputs Javascript - Data control which you find underInputs. If there is no code in the Input JavaScript - Data window, there will be no Inputs (Nested) Tab.
For example, this visualization will not have an Inputs (Nested) tab.
In contrast, this visualization will have the Inputs (Nested) tab. Notice the code in the INPUT JAVASCRIPT -DATA window:
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How to Create a Visualization via QScript