The help for "series" says " In the context of a genr formula, existing variables must be referenced by name, not ID number." but using the id of a series is possible with other commands like "print". Is there any possibilities to generate a series from the ID's?
<hansl>
open andy.gdt
print 1
# the help for "series" says " In the context of a genr formula, existing variables must be referenced by name, not ID number."
# but using the id of a series is possible with other commands
series test= sales - price 

# so isn't it possible to have something like
# series test2 = id[1]-id[2]
print test
print 4
<hansl>

Best regards, 
Mihai