Pressing that button does nothing for me. I emailed eBay, as it makes no sense.
Regarding shipping: I plan to charge whatever USPS or UPS says is the price. Hopefully the shipping system adjusts for the buyer's location so I don't have to charge the maximum it could cost to ship cross-country. I think I've got a box and spare packing materials to use, so no extra charge for that.
Further exploration and I found the "advanced" editor that allows HTML and figured out its preview mode. This seems more useful.
Regarding shipping: I plan to charge whatever USPS or UPS says is the price. Hopefully the shipping system adjusts for the buyer's location so I don't have to charge the maximum it could cost to ship cross-country. I think I've got a box and spare packing materials to use, so no extra charge for that.
Further exploration and I found the "advanced" editor that allows HTML and figured out its preview mode. This seems more useful.