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On the roadmap, you can set up a hierarchy with 3 different levels - Epic, Standard Issue, or Subtask.
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Go to Apps > Swanly roadmaps > Issue view
Switch to Roadmap view
Click on the Hierarchy button in the navbar
Choose necessary hierarchy level in the dropdown
Click on the left part of the swimlane to expand child issues
Click again to hide child issues
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How to see issue hierarchy in the list view
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Switch to the List view
Click on Hierarchy top level button in the navbar
Choose the necessary level in the dropdown
Click on the expand arrow next to the parent issue key to see child issues
Click again to hide child issues
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