private void showClearAllDialog(ListingActionContext programActionContext) {
		ClearDialog clearDialog = new ClearDialog(this);
		clearDialog.setProgramActionContext(programActionContext);
		tool.showDialog(clearDialog);
	}
Pop up the clear with options dialog.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/clear/ClearPlugin.java