Animation Nodes - object locations help needed

I’ve just started experimenting with animation nodes (very awesome addon) and have an issue using object locations. I have a collection of object and I get their object locations using the object transform input. Then I compose a matrix and plug it into an offset matrix. But, because I’m using object locations, any offset is added to the previous one and so on resulting in the object disappearing off screen. Is there a way to grab the object locations and preserve their original starting positions, so they return to where they started at frame 0?

Thanks for any insights!

Never mind! - I found it under Object ID Key node. :slight_smile: