I set some items with auto-cancel set on but forgot to set the ‘time interval’. GS listed the items then stopped them within minutes of the listing started. Not sure this is desirable.
That’s strange. What value was selected as the interval?
“1 Day Before Listing Renews” is the default option as far as I can tell. Like many of the other listing settings you can’t change the default value but what you can do is to create a “master” template that holds all your preferred settings. You can define the master listing in the GarageSale preferences > eBay > New Listing as you probably already know: https://manual.iwascoding.com/gs8/en/GarageSale_Preferences-eBay.html
Another way is to simply create a duplicate of that master listing manually.