@Override
	protected boolean setPlateComment(Program program, Address address, String comment) {
		SetCommentCmd cmd = new SetCommentCmd(address, CommentType.PLATE, comment);
		if (program.getMemory().contains(address)) {
			return cmd.applyTo(program);
		}
		if (program2 != null && program2.getMemory().contains(address)) {
			return cmd.applyTo(program2);
		}
		throw new RuntimeException(
			"Cannot set plate comment, neither program contains that address.");
	}
This method allows for EXT4 files larger than 2GB to be imported as 2 (or 3) separate programs.
Then if both programs are opened (and have the same base name), then both will be analyzed.
Ghidra/Features/FileFormats/src/main/java/ghidra/file/formats/ext4/NewExt4Analyzer.java