I use Total Commander since nearly 20 years Hannes.
It does have a batch file renaming command (beside many more things).
I first changed the naming order to have 3 digits.
With that 24 files i copied them to another folder and batch renamed that to begin
with "filename.025.obj" and copied the new files to the original folder.
So i had a series of files that ended with 048.
Then i made anther one series with the same procedure beginning with 049 this time.
Repeat the same so much you want. It gets even faster while copying the 48 files then 96 etc.
There might be other ways but it takes longer to write then doing actually. Very easy.
For offsetting , when you have done the above, copy all of the files and then offset-rename the file numbers.
That is much easier even
This is what we could have as a new option in Terragen. Offsetting image sequences and object sequences.
I think Matt could this apply very easily? We could use the same image-object sequence in this way hopefully.
Together with what we talked in the first page (repeating,oscialating etc.) using this kind of scenes would be very easy in Terragen.