disneyshopper
You have 189 active listings. 147 of them show free shipping. You can REVISE the listings in bulk to Calculated shipping. I will upload my macro for changing the handling time to 1-day, so you can follow along, but instead of handling time, change the shipping method.
This is what I did to change handling time to 1-day back when it was required to be a top rated seller:
Using Seller Hub, I went to Manage Active Listings. I clicked the [ ] box in front of Actions to mark all the listings. Then I clicked on the down-arrow next to EDIT and selected Edit all xx listings.
Next I clicked the [ ] box at the top to select all listings. Click on EDIT FIELDS. Click HANDLING TIME. under Edit Handling Time, select CHANGE TO (you can select from 1, 2, 3, 4, 5, 10, 15, 20, 30 days). SAVE & CLOSE. Click SUBMIT CHANGES.
