With the recent implementation of folders in the assistant, I noticed that if I go to the top of the screen to file the current thread, the "add to folder" menu option only lists existing folders and doesn't have the option to create a new one right there. Instead, I have to go back out over to the main sidebar to create a new folder there first, and then go back to the menu in the thread to file it. It would be beneficial to have a "create new folder" button right there in the thread, similar to the functionality that existed for creating new tags at the time of assignment back when those were around.
Also, it's kind of minor, but I just noticed that the "+" button in the sidebar appears on mouseover and isn't persistent. I had to search around a bit to figure out how to create a new folder and only discovered it by accident.
Some kind of "create new folder" option should be available inside a thread's "add to folder" menu entry, so that when a user goes to file a thread, they can create a new folder if one doesn't already exist. Right now, the "add to folder" menu only lists existing folders, and users must go back out into the assistant sidebar to add it there first.
