Digger comments such as digger plan and digger apply accept the following flags:
Copy
Ask AI
-d value directory (short form) -directory value directory (long form) -p value project (short form) -project value project (long form) -layer value (only for layering) layer to plan or apply (default -1)
The -p and -d flags can be specified multiple times. In the case of projects they will select the projects from the flags.
Same goes for directories. Some example comments with flags: