Qlik Sense Report Constructor is the automation tool which allows generating the JSON content of the Qlik and VizLib plain tables with the configured set of the dimensions and measures which can be shown/hidden by filters with the %FieldGroup, %DimensionLabel, and %MeasureLabel fields.
The more dimensions & measures your table retains, the harder its support is, so it really makes sense to automate the process a little bit. :-)
Please refer to the How-To Qlik Sense Report Constructor.txt for more details and instructions.
Cheers!