Conversations sortable on arbitrary fields

Hi Len,

You seem to be referring to threading. "Threaded" is a sort order. It's not possible to sort by "threaded" and sort on a field at the same time. When you sort threaded conversations on a field, it's the conversations that get sorted, not the messages within the conversations.

I don't know why the conversation collapses. That doesn't happen on my installation.

In case anything is new for you here: https://support.mozilla.org/en-US/kb/message-threading-thunderbird

You must be using cards view instead of of table view. The conversation does collapse in cards view when one tries to sort on a field.

The hierarchical sort order of a threaded conversation is more apparent in table view.

The "conversations" view may do more of what you want. You may have to customize the top toolbar to put a button for conversations there.

I believe that the implementation of conversations is incomplete and buggy. Developers are working on a new version.