1. Go to Deliveries > Deliveries (/admin/root) with the right kitchen location selected.
2. Choose the Delivery Date.
3. In the Orders for <date> table (and Grab&Go Orders for <date> if present) tick the orders to send — the header checkbox selects all not-yet-exported orders across both tables.
4. A sticky bar shows "N orders selected"; click Export to Root (or Clear selection).
5. On success the page shows "New Tracking Id added: #<id>"; the selected orders now show the green route badge instead of Not Exported.

Everything you tick in one go becomes one route in Root Deliveries with one stop per order.