[Therion] Problem on moving scraps on the final survey

[Gilbert Fernandes (mailinglist)]

Hello,

I notice a problem when you try to move a part of the survey on the final
survey.
I follow the doc (wiki chapt 3.4.4 offseting scraps
http://therion.speleo.sk/wiki/doku.php?id=tbe:wiki3
<http://therion.speleo.sk/wiki/doku.php?id=tbe:wiki3> )
It work fine, but to move down a branch of the survey on an extended
elevation, I add a virtual vertical survey with the flags indicated in the
doc
   flags duplicate
     extend ignore
     20 20a 10.00 90 0 0 0 0 0

But all the points "altitude" give the new altitude increased of 10 meters
(with a vertical survey of 10 m).
How can I do to have the good altitude ? Do you have a special flag on the
survey measurments to say to therion to not take in account this survey for
altitude ?
I have the same probleme in the 3D model  with Loch because my 3D model take
in account this survey and my branch is not in the good place.
If you have a solution, thanks a lot !
Gilbert