In our Jira instance, we have renamed our epics to features and created a new type of epic ticket.
This configuration brings a new hierarchy between our tickets.
Epics > Features > Other ticket types (US, Tasks, Anomaly etc...). We represent this hierarchy by the "Parent Link" (Parent Epics and child features) as well as the "Epic Link" (with the other types of tickets below the Features)
The current configuration of the dependencies does not take into account the native Parent Link and Epic Link Which prevents a hierarchical display of tickets in the dependencies.
We opened a ticket at Atlassian support, and then a ticket was created on their side. We need a vote to allow the implementation of these links in the dependencies. FYI : https://jira.atlassian.com/browse/JPOSERVER-4355
I'm forwarding you the ticket, feel free to vote and follow if you are interested in this feature.