I would like to create a table like so.
| field 1 | field 2 | field 3 | field 4 |
| |------+-----|-----+-----+----| |
| | sub 1|sub2 | xx | yy | zz | |
|---------+------+-----+-----+-----+----+---------|
| | | | | | | |
| | | | | | | |
Is there any way that emacs org mode to create such a table.?