How to Enable In-Store Pickup in Shopify Symmetry Theme

In-store pickup display is largely a Shopify admin setting, not a Symmetry-specific one — the theme just needs to be a recent enough version to show it, which it is by default.

Steps

In your Shopify admin, go to Settings > Locations and make sure the location you want to offer pickup from has local pickup enabled.
Go to Settings > Shipping and delivery > Local pickup and confirm the pickup option is turned on.
Symmetry's product and cart pages automatically show pickup availability once this is configured — there's no separate theme toggle to find.
Preview a product page for an item stocked at that location to confirm the pickup option appears.

If pickup doesn't show up, the fix is almost always back in Settings > Locations or Shipping and delivery, not in the theme editor.