# Feature comparison: Add Entry itemsets and Repeating Data itemsets

Feature comparison: Add Entry itemsets and Repeating Data itemsets

| Add Entry itemset | Repeating Data itemset
--- | --- | ---
New features |  |
Variable rows | Yes | No
Fixed rows | No | Yes
Grid display of not started rows. | No | Yes
Predefined items | No | Yes Predefined items and values appear in a static display with a light grey background to distinguish them from items that allow data entry.
Display an asterisk (*) in the column header for required items. | Yes | Yes
Enter items from the grid view. | Yes Click the Add Entry button to add a new row to the itemset or to enter items. | Yes Click on or tab through the controls.
Blank items | No | Yes Cells for blank items appear with a light grey background. The associated item has no value, and the cell is not editable. Blank items are defined during study design.
Row comments | No | Yes Click the Add Item Comment icon to the right of the itemset. Use as a shortcut to apply the same comment to all items in the itemset that are not pre-defined or blank.
Existing features |  |
Allow new entries/rows | Yes | No No Add Entry button on the form.
Column sorting | Yes | No
Row hyperlinks | Yes After the first row submission. Click the underlined number at the beginning of the row to view each item in the Detailed view. In the Detailed view, you can enter comments, queries, and rules for individual items within an itemset row and display audit trail information on an item-by-item basis. | Yes For every row after the form is started. Click the underlined number at the beginning of the row to view each item in the Detailed view. In the Detailed view, you can enter comments, queries, and rules for individual items within an itemset row and display audit trail information on an item-by-item basis.
Row delete/undelete actions | Yes | No

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