Switch it on. Open Settings → Modules, find Pickup Points and enable it. Products → Pickup points appears in the menu.
Add your first point. Open Products → Pickup points and click New pickup point. Fill in:
Name — what shoppers see, for example Koramangala Store;
Code — a short unique code, for example BLR-KOR;
address (City, State or region, Postal code, Country), Phone and Email;
Collection instructions — what to bring and where to go;
Collection fee — leave at 0 for free collection;
Status — Active.
Save.
Set opening hours. Open the point and fill in Opening hours for each day, or mark a day Closed all day. Copy Monday to every day saves typing. Click Save opening hours.
Optional: show stock per shop. If you use Warehouses, choose the shop's warehouse under Linked warehouse.
Test. In a private window, add a product to the cart and go to checkout. Your point appears as a collection option. Place a test order and find it in Sales → Orders.