adding column for file and client name to TM

I've been trying to figure this online but can't find a satisfactory solution. 

How can I a column for the file name and another for the client name in my TM?  

Once I've done that, what do I have to do when creating a new project to ensure that the file has the correct file and client name?

And how about when I import aligned files? I normally use Logiterm for alignment, and it creates a generic file name, although i image I can change it. 

Thanks in advance for any suggestions. 

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