My question would be - why do you want to do this? what are you trying to achieve?
Remember... everything in the project panel is just footage - elements to be used in your final piece. I can't think of a reason you would need to set the poster frame for a video clip that is in the project panel.
The piece does not become your final piece or working piece, until you have created it in the timeline. So once you drag elements to the timeline and edit them, add effects, etc. - then you can set the poster frame.
Now, on the otherhand, if you are saying:
- you have footage in you project panel
- you have created a piece in your timeline that you want to set a poster frame for (ie, this will be the movie you want to render)
- but you can't do so from the project panel
this is how AE is designed. You have to have the panel active that you are using. So if I have my piece created in the timeline, I want to render it - but first add a poster frame, I need to make sure that I have selected the timeline panel before I can do so.
Does this answer your questions? Let me know if I am not understanding you correctly.
elaine
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motion.tv
