yes thats right. You can only sort an auto-playlist by clicking on a column header or using a defined sort
Thanks for reply.
In foorbar2000 or AIMP, similar feature is supported. Auto-playlist sourced from folders can be sorted freely. When a new music file is copied to the folder, it will appear at the bottom of the playlist. It won't change the custom order of above music. So there aren't any logical problems to realize the function.
In addition, as shown in the gif, the tip next to the mouse when dragging music isn't kind of prohibitory sign showing dragging isn't surported here. So I think it's more like a bug but not an unsurpported feature.
Auto-playlist sourced from folders is very easy for users who are used to organise and sort music files into diffrerent folders manually, like me. And sorting freely helps a lot to find music conveniently.
My English is not very good. Hope to add this feature in following releases.