question regarding multicolumn table code

[Uwe Stöhr]

I made progress with the multirow support, but there is one thing I 
cannot figure out:

Where in the code are the cells merged when I e.g. select 2 cells and 
press the multicolumn button? I a 2x2 table I have after this action 
only 1 cell in the first row and 2 in the second one. I'm looking for 
the code where the cell number of the former second cell in the first 
row is erased.

thanks in advance
Uwe