list of used plugins for bamboo plans

[Approver1]

Hi

We have 25 Add-ons, multiple projects and plans Bamboo. 

How to find if a plugins are used in bamboo build plan. by below reference, i ran the query:

https://community.atlassian.com/t5/Bamboo-questions/How-to-tell-if-a-plugin-is-used-in-a-Bamboo-build-plan/qaq-p/407230

in XML file shown only default add-ons not user installed add-ons. 

I'm sure user installed add-ons are using in many  plans in bamboo. 

Please guide us. 

Thanks in advance.