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You can define up to four additional auxiliary files which are stored against each article. The original use for this was to allow a user to select a keyword from a list which was then presented in a meta tag (using a custom template).
Each auxiliary field can be a free format text box or a select pull down or set of radio buttons. You can also set the label associated with the field during data entry. You update this information using the "Modify options for your paper" option in the "Author Menu".
If you want an auxiliary field to be a select pull down or set of radio buttons you must define the possible values in a field auxfieldn.csv in your paper's directory. This must be a CSV file with all the fields delimited by double quotes and separates by commas. Each line contains details of one option, the first column is the value to be stored against the article, the second is the description to be shown on screen and the optional third column should contain a non-space character on the line for the default option when entering new articles.
As an example here's our test file:
"one","Option 1" "two","This is the second option","X" "three","Third option"
It results in three options being shown to the author: "Option 1", "This is the second option" and "Third option" with the second being the default for new articles. The text "one", "two" or "three" is stored against the article.
You can turn each field you define on or off by section. By default they are off so don't forget to turn them on in the sections where you want them to be solicited.