We are using a kanban board grouped by Epic. Some issues have sub-tasks, but we chose not to show sub-tasks on the board since it gets too messy.
Is there a way to highlight issues that have sub-tasks so we can more easily see which ones require a deeper look?
I thought of using colors to do it, but I need a JQL query to identify issues that are "parents", and apparently there's no easy way to do that.
I'm won't be able to use any add-ons or external apps to do this.