Note:  You do not need to save collection structure for currently opened collection, while all information is stored in *.COL file; The functionality for saving structure of the collection is used to created a new collection with structure based on already created collection, without manual retyping field list and fields properties.

• String - single line text;
• Signed number - single signed number without comma;
• Floats - signed number with floating point;
• Face value - the same as Floats, used for grouping with currency field in statistics; Added since CS 4.66;

  With this field you can show and edit the value using "1/3", "1/5", "1/12" string etc instead of 0.3333 and 0.2 etc;

• Boolean - Yes/no flag;
• Combobox - Editable string with drop down list; This drop-down list will be automatically populated by values from corresponding field of all collectibles in current collection.
• Date - indicate date: day, month and year;
• Date/Year/Century - specify date (day, month and year) or only year or century;
• Period - 2 dates field: start date and end date; Added since CS 4.66;
• Country - Combobox with selection list (without possibility to edit, just to select). When there's a field with Country type you will see additional statistics views;
• Currency - Combobox with selection list (without possibility to edit, just to select). When there's a field with Currency type you will see additional statistics views;
• Quality - Combobox with selection list (without possibility to edit, just to select). When there's a field with Quality type you will see additional statistics views; Quality states is modified for any collectible on separate tab page in "Collectible Edit" dialog;
• Year - When there is at least one field with Year type, you will see additional statistics views: "By Year", "By Century" and "Without Year";
• GPS Coordinate - Editable string with set of predefined web links (Google Maps, Yahoo Maps) to show current coordinate on the map;
• Comments - multi-line edit area with formatting options, such as bold, italic, colors etc;
• Group separator - shows horizontal line on the "Collectible Edit" dialog with text; Added since CS 4.66;
• Page separator - divides "Collectible Edit" dialog on several tab pages. Added since CS 4.66.

• During export/import into XML or SQL file;
• During run of any plug-in, because all of them use XML to pass collectible data;
• In the template view;
• During creation of the collectible title using its template;

For example:

Google Maps=http://maps.google.com/maps?q=[value]
Yahoo Maps=http://maps.yahoo.com/?q1=[value]

Here [value] is alias for tag. So, you can use [tag] or [value].

If there are more than 1 action in the list, a button with drop-down menu will be added for the field on the "Edit" dialog. For the example, provided above the this control will look like this:

To place a separator into the menu, just add an additional line in desired position for separator with "Separator" word in it.