Trail file problem whr i have more then one commponent in assembly

I don't think anyone understand what you are asking. What is your goal? What are you trying to accomplish?

Hi,

I am sorry I do not use EMX. Therefore I cannot help you.

Hi

But I think the problem is how to activate a part when there is more than one part. Maybe choosing a different method would help.

Any tips. maybe difrent filter

TP

You're trying to unlock parts. Are you using Windchill? Are these Locked in the workspace? 

I know there's a settings that will Lock all files in the Workspace, and that you can change that setting. There may be similar settings for Creo without Windchill to set files as read-only. I'd recommend reviewing your config settings and making sure you don't have something locking the files for you.