1) to make any io operation (for example file copy or move) to perform like background (with non-modal window) by default. So i can start copy, then minimize copy window, then continue to work with TC.
There is no need to use application-modal copy window at all. (allp modal is when you cannot work with TC while copying files)
2) to use NORMAL INFORMATIVE window (non tinyest possible as it is for now:-)) which shows target, destination, long progress bars (may have dialog resize possibility?), data transfer speed, elapsed/estimated times. Display all of these fields, always. I have 1920*1080 monitor, there is NO need for tinyest possible window when it goes asyncrhronously(background copy mode)

3) to have a possibility to control speed format (to set it dynamic k/m/G per second, or to set it for MiB/s ) instead of displaying sctrictly in KiB/s.
4) to have refresh rate(update rate) option, allowing to set 100ms gui update interval - for file copy dialog. I have powerful PC and modern video card! I like to look at instantly flashing file names, and precise, (almost) instant copy speed! Why not?
PS. (continuing 4)
5) also there is a semi-bug. When speed is too fast and/or time is too low - it does not display speed at all. For instance, it prevents me from measuring copy speed, when i copy 3 GiB from one RAM-drive to another, which takes about 3 seconds. Why not to display all the information all the time?