Splitting the timeline into two seperate projects

linoge8888

I've created a 3600 frame long animation with a lot of objects but DS had many freezes due to a lack of memory (RTX 4090 32Go, 128 Go RAM are not enough). So from the original project, I cut out the second half just by saving the project with the timeline starting from 0 to 1800. Now I want to work on the second half but not sure how to cut out the first half from the original file. Any idea ?

crosswind

If the 2nd half are all key frames or at least 1801 is..., hold left mouse button drag to Marquee Select all frames from 0 to 1800, Delete Selected Keys. Save the rest as a Scene Subset, then load into a fresh new scene.