You do not need to define columns. That is not necessary. You can set a table with empty rows and columns via minRows and minCols like in the table above and change the cell type whenever you want (via cells method and updateSettings).
You do not need to define columns. That is not necessary. You can set a table with empty rows and columns via minRows and minCols like in the table above and change the cell type whenever you want (via cells method and updateSettings).