Hi to all!

By default all running apps icons are arranged on the Active Tasks tab on the Shelf are added in the same order as programs were started or windows were opened. Is there any option to rearrange icons manually?

This option seems to be must have, so I believe it should be in here somewhere. But I could not find any way to do it. Tried dragging icons with mouse + some modifier keys as Alt, Shift and Control... Doesn't work.
Furthermore I searched trough the forum and found several question about the same subject, but none of answers (for instance in this topic https://forums.winstep.net/phpbb2/viewtopic.php?f=2&t=11336&p=40581).

Thanks!

No, you actually cannot, not on the Tasks tab of the Shelf (but this functionality is available on the NextSTART version of the Windows taskbar, which, of course, is of no help to you, sorry).