LINQPad 5 - Referenced files and working directory

I have to run a script using .NET Framework so had to pull up LINQPad 5 after so long.

I can't remember but did this version allow adding references to arbitrary files for a script, and are they copied over to the working directory when "Copy all non-framework references to a single local folder" is checked?

I have certificate files I want copied over to the working directory. If I inspect the working directory path (i.e., Environment.CurrentDirectory), it's pointing to the LINQPad5 directory and the files I referenced certainly don't exist there. I can work around and put in the full path of the original files in the meantime as a workaround.