Hi Marc,

I worked with this feature. 
  1. I added the "$("#addColumns.ajax input[value=Go]").live('click')" action to the tbl_structure.js file which gives the add columns dialog for the user. 
  2. Then I reused the code in "$("#append_fields_form input[name=do_save_data]").live('click')" action in functions.js file which was initially written for handling the table->change option. I did small changes for the same action and used with this feature. 
I pushed my changes to the repo. Please check that. Thank you. 

Regards,
Thilanka. 

--
L G Thilanka Kaushalya     
Computer Science & Engineering,    
University of Moratuwa,
Sri Lanka
                          
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