I'm going to add the possibility to access the grid dynamic calculated columns content in the Rename and Edit Info Fields batch tools.
The grid
dynamically calculated columns have a kind of scripting functionality, so it will be very easy to achieve what you pretend.
In your case, a dynamically calculated column with the next script:
begin
var 'i' end;
$i:=pos(',',A);
if $i>0 then
return(leftstr(A,$i-1));
else
return(A);
endd;
end
Could then be used in the file rename expression referencing it with [D#], where # must be replaced by the index of this dynamically calculated column
e.g. [T]-[D1], will result in a file renamed with the Title + the content of the dynamic calculated column 1, and that is the result of our script.
This feature will be included in the Build 59 Patch 3.