Hi anto,
It may be helpful if you are able to post your .nod program, so that someone proficient may see the areas of concern.

I have not seen much activity in the nodeeditor arena the past few months, what with vacations, the season, and other interests.
But Max did make some much appreciated improvements, a short time ago!

The Objects/ Get-by-style node enables the entry of a .3dm file that is already in MoI, into nodeeditor, by color-style. Set the objects color-style to a unique color,
then open the .nod with the node.
There is also Objects/ Get-by-name.

I do not know how to script, or if it is possible to script, importing and exporting in a node. (???)

Sub-object naming node?

- Brian