In Drupal CCK it is possible to set the Number of Values to 'Unlimited,' so that the user can click 'Add Another' and a new field will pop up.
Is this somehow possible with a group of CCK fields as well? I need to have a textbox and dropdown linked together, and have my users be able to add an unlimited amount to the content-type. I've seen threads about people working on their own implementation, but have yet to see anything be released on this topic.
Flexifield module, some more details about it (from its project page):
CCK on Drupal 6 is awesome. You can create multi-valued fields, and re-order the field items with drag-and-drop. However, each item in the field is constrained to be of the same type (e.g., text, date, etc.), and creating a new type requires coding by a developer.
Flexifield tries to get around both limitations by letting you create combinations of fields and then use that combination as items within a larger field. You define a field combination by creating a node type and adding fields to it. On a different node type, you can add a flexifield, and then on its configuration form, specify which node types to use as items within the field.
Also see there some links to other modules like this.