Use
Set command
Set
cell[Table name, Column name (or index), row name (or index)]
"Value"
Example:
Set cell[Table, 1,1] "ABC" //Set 1st column and 1st
row in the Table named as Table with Value ABC
Similarly,
Set cell[Table, Material,&[idx]] "&[row_val]"
Set value of GuiXT variable row_val in a Table row represented
by index "idx" column with Title Material |