A: When you open a provided diagram in ioGAS, the program will run calculations to create the columns that will be used as the axis values in the diagram. If you already have a column with the same name as a column used for one or more axes in the diagram, ioGAS will ask you if it is ok for the calculation to voerwrite your existing columns. If you choose No, then ioGAS won’t overwrite your columns and your database won’t be affected. You can create a diagram and still keep your columns with the same name, but you need to change the names of your existing column to prevent the warning message from showing.