Visualize burden test results from regenie

Hi,
I have done burden test for a set of genes for my phenotypes in UKB exome data using regenie.
https://dnanexus.gitbook.io/uk-biobank-rap/science-corner/using-regenie-to-generate-variant-masks
How could I use plotburden to visualize those results?
Is it possible to add this functionality in plotburden so that we could use output from regenie?
