[Therion] line tracing

[Martin Sluka]

Make few line points at beginning of line you want to trace and start tracing. 

m.

> 12. 9. 2015 v 13:28, Andrew Atkinson <andrew at wotcc.org.uk>:
> 
> In the map editor, under edit line there is the option Trace Line. What
> does it do, I cannot seem to get it to do anything, cannot find any help
> on the wiki or book. Just thought it might be useful as I sometimes have
> to copy a line to make a boundary in a scrap be the same as a line in
> the scrap above?
>