Here you can see the Virto Office 365 Kanban Board Add-in, where the tasks are placed in the columns and rows according to their value.
To change the value of the task, just drag and drop this task to the required column or row.
Click the item to view brief information about it in the tooltip.
Click on bell icon in the right upper corner of task tooltip to assign task watchers.
Task watchers receive email notification about any changes in this task.