@Override
	public List<DockingActionIf> getPopupActions(Tool t, ActionContext context) {
		if (context.getComponentProvider() == this) {
			ListingCodeComparisonPanel dualListingPanel =
				functionComparisonPanel.getDualListingPanel();
			if (dualListingPanel != null) {
				ListingPanel leftPanel = dualListingPanel.getListingPanel(LEFT);
				return leftPanel.getHeaderActions(getOwner());
			}
		}
		return new ArrayList<>();
	}
Dockable provider that displays function comparisons  Clients create/modify
these comparisons using the {@link FunctionComparisonService}, which in turn 
creates instances of this provider as-needed.
Ghidra/Features/CodeCompare/src/main/java/ghidra/features/codecompare/plugin/FunctionComparisonProvider.java