Once LabPlot has some support for categorical data, implement basic functionality for data wrangling (import and transformation of unstructured data):

https://en.wikipedia.org/wiki/Data_wrangling
http://vis.stanford.edu/papers/wrangler
http://vis.stanford.edu/wrangler/
https://www.trifacta.com/products/wrangler/
https://www.dataiku.com/dss/features/data-wrangling/