Thanks, that's unfortunate. However for future readers, I was able to achieve this by disabling Start11's "enhanced taskbar mode", and using WindHawk's "Disable grouping on the task bar" mod. This is of course a tradeoff, since I can no longer use any of Start11's enhanced taskbar customizations, but I hadn't actually needed them for my purposes. I would be nice in the future if the functionality of this WindHawk mod could be implemented directly into Start11. Regards.
mmseng
Hi, I'm loving Start11. I always keep my taskbar buttons "ungrouped". However when ungrouped, taskbar buttons representing different windows of the same application executable still "stick together" in a group. You can move this conglomeration of buttons as a group in relation to buttons for other processes., but the individual buttons in the group cannot be separated, nor can they be rearranged within the group. As I recall this is default behavior since Win7 or Win10, but I've been able to