Help! Gap maps anyone

Hi
I would like to create an evidence based gap map, similar to those reported in http://www.3ieimpact.org/media/filer_public/2015/02/04/how_to_read_egm_document_top.pdf.

I am not a programmer but would love to develop this as a tool using Plotly to help visualise the evidence from my systematic reviews.

Thanks!
Pauline