As of the Kirby Cove update, we've added a tool to quickly and easily place slots on Origin.
The Slot Tool creates a rectangular shape with rounded ends. The curves will always relate to the width and height of the slot.
To place a slot, tap Create in the Design Menu, then tap Slot.
Once the shape Width and Height are specified, you can adjust the Anchor and use Position. Note: a Grid is necessary to use the Position feature.