GWP automated idpr does not follows the changes in associated files

Hi, everybody! 
I'm using GWP for publishing a DGN file with many of associated files. 
For that I'm configuring the auotomated idpr convertion in GWP Administation.

GWP follows the changes only in one file, the one that has been published, but it does 
not follows the changes in the associated files. 
This way having the associated files becomes useless. 

I can press "Start process" in GWP Administration UI to update automated idpr 
file if any changes was made in associated files. 

Does anybody know, how to make GWP to track changes in associated DGN files, 
or any way to programmatically "Start process" to reconvert automated idpr file.
Thank you. Sergey.