[Therion] Scaling of maps

[Wolfgang Zillig]

Hi,
I'm just redrawing a not too small cave in therion. The x- and y- extent 
is quite big, while having lots of small passages. In these passages a 
scale of 1:250 is still nice, however exporting in that scale exporting 
does not work due to the error:
"error -- Map is too large for PDF format. Try smaller scale!"
Is there a way  to "scale down" export while keeping details? Especially 
gradient arrows and other symbols not looking good at 1:1000.
I know that some details getting too small for printing, but it would 
love to have it on screen as one map...
Best regards
Wolfgang