If you want to use the ability to use labels on top of each column, but you want to use those labels to signal something meaningful (in terms of utility) to the respondents, then there is a workaround.
Of course, I would suggest just adding another attribute to the experimental design, but you have stated that you don't want to add another factor to the design for some reason...you just want to use the current design.
To use the "column labeling" available within our latest CBC software but also get utility estimates for those labels (because they are meaningful to choice likelihood), do this:
1. Specify those column labels that convey utility meaning to respondents within our software (ignoring our warning).
2. Collect the data (do NOT use the concept sorting option in the CBC software, as it will make it impossible for you to figure out which products were shown in which columns).
3. Export the data to .CSV format (single .CSV format).
4. Modify the .CSV file to add another attribute to the experimental design (your column label attribute).
5. Take the new .CSV file and submit it for utility estimation with our standalone CBC/HB or Latent Class software (NOT the built-in software within SSI Web for utility estimation).
6. Import the resulting .HBU file into our SMRT market simulator or our online market simulator for analysis.