H-m-m, these are specific things, but they make sense. Do you need these options for footer totals calculated automatically? You can always do manual 'adjustments' like these for footer cells using the properties of footer cells, but it will require writing code that enumerates footer cells and change the corresponding properties after every calculation of totals. And what is also important, you will need a event raised by iGrid after the totals have been calculated. So, yes, this makes sense if you set these options and forget.
From other point of view, other customers may have other specific formatting requirements. Implement specific options for them too? This would bloat iGrid...
What if we add events for dynamic contents and dynamic formatting of footer cells - similar to what we have now for normal cells (CellDynamicContents, CellDynamicFormatting)? Then anyone could implement any 'effects' for footer cells using these two universal events.