If you want to do boards, you probably want to use Jira, not write it yourself in Confluence.
As I said, Confluence is not written to support boards, there's nothing in it that will do it, so you would need to write a lot of code to do it. It is likely to be a lot easier to use a tool that is built for it, such as Jira.
I don't know how to do that :-(
I found this information but I think I don't have the options Strategy Canvas and Task Canvas
I also found this, but I don't find the Board Settings
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