private void addCallback() {
		if (currentCodeUnit != null) {
			plugin.popupAddReferenceDialog(currentCodeUnit, instrPanel.getSelectedOpIndex(),
				instrPanel.getSelectedSubOpIndex(), this);
		}
	}
Size the columns such that the interesting ones are wider than the
uninteresting columns.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/references/EditReferencesProvider.java