An I create a customized graphs for visualization using forge for my projects?

I created my own customized plugin to measure the quality of my each project and I am tried to extract the data and done successfully

By thinking advance now I need to create my own visualization for the data which I am needed and so for that I am having the following Questions please help me to sort out ?

1. can we able create my own graphs under forge either its Jira or confluence ?

2. If yes is there any documentation is there ? if not is there any other way to implement it ?

3. in forge I saw one video using {map builder}- countries map they build instead of that we can build any thing if there is any map type code or link please share with me ?

4. how my friends (Atlassian) maintain their visualization in a back end ?