Global columns are attributes that you can add to an import that will apply to every profile that is imported. You can add as many global columns as you'd like. These can be Crowdskout fields or they can be custom attributes.
You can apply a global column while you are mapping your CSV columns to Crowdskout by selecting "Make Global Value."
In the following field, you can type your global value. In this case, the global value for "Title" is "Mr." This means every person in that column will have "Mr." as their title.
Once you are finished mapping, you also have the option to apply a global column in the end (in case you missed out on any).
If you select YES, Crowdskout will ask what column you want to apply a global value to.
Remember, there is no limit to how many global columns you can add to your import.