Use of variable in a Confluence template

[Michel SE]

Hi,

We are managing requirements in Confluence templates.

One requirement is generally linked to one main issue in Jira which in turns is linked to several others.

Once I know the ID of the main issue in Jira, let's say "ABC", I am able to display this issue  + all issues linked to ABC in Confluence. I am using JQL "issue in linkedIssues(ABC)" -

Anyhow I would like to design a generic template which will do this automatically without knowning the Id of the main Jira issue.

I'm assume this can be done with some variable, but I have no experience on this subject and can't find answer.

Thanks for your help