We have an issue when we are generating big reports. They can take several hours or days to generate.

We dont know when they will be finished.

When we are creating reports we would like to have a dialog which will say:

"This report will take some "time", (10 min, 1hour, 1 day...) ; Abort, Continue?"

If possible to give some kind of suggestion to modify the report, break out, metric or something which will make the report generate faster.