There are several improvements that could be made to the import dialog:

• Check boxes should appear before each item
• Groups should be separated from other items with separator lines rather than indentation
• If another non-boolean item has single boolean item as condition, and the boolean item is not a condition to any other item, the items can be combined to single line. If this results in a single item group, the group can be omitted.
• Grid should utilize available space better and not be fixed size to allow long strings to be fully displayed
• Verify the dialog looks fine on various screen pixel ratios