How to get current data table's directory?

unknown

I use get current directory(); but it works only when i open a fil from menu File->open. If I just open a jmp file by clicking on it and the result of get current directory() is not what is supposed to be.

unknown

This isn't exactly the same question but the answer to one will answer the other: having loaded a data table into JMP, can I determine at a later point in the session where it was loaded from?

I can find this out if I've imported a spreadsheet into a JMP data table, because the path of the spreadsheet is recorded as a table variable, and can be retrieved with:

show(dt << get table variable("Notes"));

However I can't see how to access the same information if the data table was simply saved as a JMP table and then later reloaded. JMP obviously possesses this information, because it knows where to write the file back to if you re-save it. Anyone?