It would be great to be able to preserve the Jira ticket number on import. In other words, have it map to ClickUp's custom Task IDs.
Similarly, it would be great to be able to support TaskIDs at the Folder level, not just the Space level.
As per ClickUp's Hierarchy diagram (https://clickup.com/hierarchy-guide), a Jira Project = ClickUp Folder.
So I'd expect to be able to have custom TaskIDs at the Folder Level.