Feature request: customizable plot summary

[kgaonkar6]

Purpose/implementation Section

Briefly descibe the feature

Add options to customize plot_summary ?
This topic came up while we reviewed output from a different project, if the user wants to gather summary for specific columns only for example if we should get distribution of fusion type per a user provided input ( maybe like subgroup) instead of fusion caller in the current top right corner.
Not sure if the pdf generated in the best option then maybe would need widget with column options and generic bar plots per column . This is up for discussion so adding @jharenza for input

Who will complete the feature request (please add a GitHub handle here if relevant)?

develop by @kgaonkar6 and @jharenza for input