Hi! Is there a way to enable the ''Unified folders / Smart Folders'' functionality when using just '''one single account'''? I'm using IMAP with Gmail. My goal is to include sent messages in threaded view. When using more than one account, I know this can be enabled in Folders => Unified, then on the special main Inbox I choose the folders to search and include ''Sent Mail''. However, this folder choosing option is not enabled on the regular Inbox when using just one account. Is there a way to enable this? I found and Addon called "Smart Folders For Single Account" but it hasn't been updated since 2016 and TB suggests not to install. I also tried creating a new Saved Search called Inbox2 that includes all Inbox Messages and Sent Messages. It works but the sorting has bugs. I sort the threaded view by date and expect sent messages to appear sorted, but TB places sent messages at the end of all incoming messages. I re-sort to fix it, but the issue is back whenever I click on another folder and get back to Inbox2. Hope there's a way to enable ''Unified folders / Smart Folders'' functionality when using just '''one single account'''. Thank you in advance.