Feature request: Nested / sub-workstreams for time tracking Currently workstreams are a flat list, and monthly close workstreams (e.g., "Close - July 2026") auto-group under a "Month end close" parent in the UI. It would be extremely useful to be able to add a second level of nesting under each monthly close — e.g., Close – July 2026 → Reconciliations, Transaction Review, Accruals, Reporting, Client Communication. This would let firms measure time by section within a specific month's close without losing the per-month grouping, and would make Capacity Planning far more actionable for identifying bottlenecks in the close process.