[Therion] XVI with sketch

[Vasily Vl. Suhachev]

Hello

I am used thconfig like this:

-----
input "large_centerline_with_loops_closure.th"
input "new_survey.th2" # sketches enabled
select new_survey.whole_cave
export map -fmt xvi -o new_survey.xvi -proj plan -layout-sketches on
-----

Therion generated XVI of "new_survey", but without sketch image.

If I deleting "select" command I get XVI+sketch, but XVI contained centerline of whole cave (approx 30 km), and XTherion work very slow.

How to make XVI with sketch for part of large centerline? 

PS using Therion 5.2.14

-- WBR, Vasily