@Override
			protected ListingModel createListingModel(Program program) {
				if (program == null) {
					return null;
				}

				if (showListingPanel) {
					return multiModel.getAlignedModel(1);
				}
				return new EmptyListingModel();
			}
Panel to select a data type in order to resolve an add conflict in the multi-user
external location merger.
Ghidra/Features/Base/src/main/java/ghidra/app/merge/listing/ExternalAddConflictPanel.java