Creating a Custom project template containig Epic field

Hello Community,

I’m trying to implement some custom Project Templates for my Company.

Since were using Jira Software , we ran in Epics an Boards.

I may be blind but I could not find some explanations:

  1. How to Use Issue types that are “shipped” with Jira software like “Epic” ?

we use this Issue Type quite often and would like to integrate it in our custom Templates but don’t quite sure how

  1. How to add a default board template ?

We got a modified version of a Kanban board and i would like to use this config in our temple so I can allow user to create a “My Company Project” and get our Board. complete with pre-defined filters and Swim lanes

I created a Project like here but can`t find a way to use fields and boards already implemented in Jira