Specify location of DLLs for C# Interactive

F# Interactive `#help` shows these options:

#r "file.dll";; Reference (dynamically load) the given DLL
#I "path";; Add the given search path for referenced DLLs
#load "file.fs" ...;; Load the given file(s) as if compiled and referenced
#time ["on"|"off"];; Toggle timing on/off
#help;; Display help
#quit;; Exit

F# Interactive command line options:

See 'fsi --help' for options

C# Interactive `#help` shows these options:

Keyboard shortcuts:
Enter If the current submission appears to be complete, evaluate it. Otherwise, insert a new line.
Escape Clear the current submission.
UpArrow Replace the current submission with a previous submission.
DownArrow Replace the current submission with a subsequent submission (after having previously navigated backwards).
Ctrl-C Exit the REPL.
REPL commands:
#help Display help on available commands and key bindings.
Script directives:
#r Add a metadata reference to specified assembly and all its dependencies, e.g. #r "myLib.dll".
#load Load specified script file and execute it, e.g. #load "myScript.csx".

One of the great features of F# scripts is the `#I` directive, which tells F# Interactive where to look for referenced DLLs.

Is there an equivalent way to do this in C# scripts?