Hi,

1) I'm a little fuzzy on what you are asking here. Do you mean the green rows you have shown here? If that's what you want, then there's no built-in way to do sub-totals like that in a flat list. You can do sub-totals by using the OulookGroupBy feature in the grid. Each group can show a summary row or display summaries in the GroupByRow, and then you can have grand totals at the bottom. That might be a little tricky in this example, though, since Item 5 and 6 would end up in a group together and they would be in a different groups than the other 4 items, so that might make the calculation column a bit tricky since Item 4 would not longer be a direct sibling of Item 4.

2) If you are using RowLayouts in the grid, then the RowLayout will carry over to the summaries. But there's no easy way to create a different RowLayout for the Summary row than for the regular rows.

3) Yes, you could do this with a formula (using UltraCalcManager) on the column. I'm pretty sure there are samples that do this under the UltraCalcManager samples. Or, if you need finer control, you could use the InitializeRow event to perform the calculations yourself.