Hello everyone,
I'm looking to do the following:
1) Developers create their individual Dev issues in Jira, and add an estimated duration to each ticket (let's say ticket A - est duration 1hr created in project XYZ, ticket B - est duration 2hr created in project DEF)
2) A "parent" ticket is now created by another team in project ABC
3) Dev tickets are then linked to the "parent" ticket in project ABC and the duration on the "parent" ticket shows the sum of the linked tickets (so, 1hr + 2hr --> 3hr total duration)
Here is a visual to hopefully make things easier:

I'm curious if something like this can maybe be done through Jira automation? Confused on where to start for something like this.
Thanks in advance for the help!!