[O] using export filters to emulate multi-column table cells?

[Eric Abrahamsen]

Is there any way to use the new exporter mechanisms to emulate table
cells that span rows or columns on export? I'm envisioning something
like this:

|      | <2col>Grains  |       |
| Year | Oats          | Wheat |
| 2007 | 10lbs         | 40lbs |

Where an export filter would pick up on the <2col> cookie, replace it
with something backend-specific like \multicolumn{2}{Grains}, and then
somehow remove the following table field from export.

No clue how feasible that might be...

Eric