Order/Managing shipping
From Shopnix Help
Where to set this feature ?
This feature lets you to edit your orders in a bulk mode instead of one by one.
Go to Admin > Orders , click on the option (red square in the below image)
Now go to the change status column of any product like below .
Now change the change status to shipped.
After clicking 
button the order will be like below image.
On clicking 
option you can track the shipment.
If you have more queries or would like assistance with this please contact us on support@shopnix.in.