contributionItems.add(new Separator(groupName));
contributionItems.add(BulkEditorInputType.OCCURRENCE.createContributionItem());
contributionItems.add(new Separator(groupName));
contributionItems.add(BulkEditorInputType.USER.createContributionItem());
contributionItems.add(BulkEditorInputType.GROUP.createContributionItem());
contributionItems.add(new Separator(groupName));
contributionItems.add(BulkEditorInputType.OCCURRENCE.createContributionItem());
contributionItems.add(new Separator(groupName));
contributionItems.add(BulkEditorInputType.USER.createContributionItem());
contributionItems.add(BulkEditorInputType.GROUP.createContributionItem());