From LimeSurvey Manual
- dropdownthreshold (Obsolete since 2.50): When "R" is selected for
$dropdowns, the administrator is allowed to set a maximum number of options that will be displayed as radio buttons, before converting back to a dropdown list. If there is a question that has a large number of options, displaying all of them at once as radio buttons can look unwieldy, and can become counter-intuitive to users. Setting this to a maximum of, say 25 (which is the default) means that large lists are easier to be used by the administrators for the survey participant.
- repeatheadings: With the Array question type, you'll often have a lot of subquestions, which - when displayed on screen - take up more than one page. This setting lets you decide how many subquestions should be displayed before repeating the header information for the question. A good setting for this is around 15. If you don't want the headings to repeat at all, set this to 0. This setting is overridden in the global settings dialog (New in 2.05 ).
- minrepeatheadings: The minimum number of remaining subquestions that are required before repeating the headings in Array questions. The default value is 3 and it can be edited in config.php.
- defaulttemplate: This setting specifies the default theme used for the 'public list' of surveys. This setting can be overridden in the global settings dialog or edited in config.php.
- defaulthtmleditormode: Sets the default mode for the integrated HTML editor. This setting can be overridden in the global settings dialog or edited in config.php. The valid settings are:
- 'inline' - Inline replacement of fields by an HTML editor. Slow but convenient and user friendly;
- 'popup' - Adds an icon that runs the HTML editor in a popup if needed. Faster, but HTML code is displayed in the form;
- 'none'- No HTML editor;
- column_style: Defines how columns are rendered for survey answers when using display_columns. It can be edited in the config.php file. The valid settings are:
- 'css' - it uses one of the various CSS methods to create columns (see the template style sheet for details);
- 'ul' - the columns are rendered as multiple floated unordered lists (default);
- 'table' - it uses conventional-tables-based layout;
- NULL - it disables the use of columns.