When using Process Integrations/using Solarwinds API to generate child tickets from parent tickets, there's currently no way to grab the attachment or assignee from the parent ticket and transfer that value to the child ticket(s). I was able to perform a workaround for attachments by using an "Attachments" type custom field, but there's limits to this as well. The attachment essentially gets moved to the child ticket and disappears from the parent ticket, as opposed to the usual value being "copied" over to the child tickets.
Being able to pull attachments natively through Solarwinds API/Process Integration is helpful to distribute information from the attachment to the other child tickets, so that the teams on the child tickets don't need to access the parent ticket (sometimes they can't due to the parent ticket having PII data)
Pulling assignee through API is helpful when the same assignee from the parent ticket needs to be on a child ticket.