Tracking Expression selection at specific frame


I want to apply a selection like (Position.X > 13 && Position.X < 32 ) at a specific frame, but I want to follow the selected particles at frame1 at different frames. What should I add to the expression selection?



You can use the Freeze Property Modifier to “freeze” the particle selection property from frame 1.
Also see here: Motion visualization with marker particles — OVITO User Manual 3.10.6 documentation

Thank you, that is what I am looking for.