Yes, you can convert multiple tasks into subtasks: https://jira.atlassian.com/browse/JRA-13245
For doing so, perform a search > bulk change > Move Issues.
It is a little bit difficult to find, as logic seems to say that it should be categorized as an Edit Issues operation instead.
Hope it helps.
I have created 35 Tasks they all have the same status (to do) and no other tags i can filter with. I want to perform a bulkchange to subtask on 15 of them. when i filter "to do" all 35 are showing without an option to select the 15 tasks I actually want to convert into subtasks.
How can I achieve this?
Step 1: Search for the tickets from issues -> search for issues
Step 2: Select search criteria
Step 3: After getting the desired tickets list, click on three dots at the right corner and select move
Step 4: In next step follow the instruction to convert ticket to sub task.
To have multiple issues converted to sub-task, you can use Bulk Operations. Please note that when converting multiple issues, all of them will share the same parent issue.
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