Select sections created in Creo with OTK Java

Hello everybody!
Help me please.

How to programmatically select sections created in Creo?

I read everything that is written in the user guide, but I still did not succeed. A section is a separate file with a *.sec extension.

If you know another way to access the section drawn in Creo, then I will be very grateful.

Thank you all in advance.
With respect!