As far as I know, the answer is no.
And you can't modify the environment variables like that. Environment variables in children are invisible to parents (so any changes your command makes can't be seen from TM).
On Nov 28, 2006, at 1:07 PM, Martin Winter wrote:
is there a way to set the filename that will appear in the Save dialog when saving an untitled document? Using TM_FILEPATH perhaps?