Isn't there an extension called FlatCache?

I remember using this extension, but I can’t find it in the latest Composer.

Thanks

Hi,
do you mean omni.physx.flatcache extension that was improving simulation output performance? It got renamed, flatcache got rebranded into Fabric, so the extension to look at now is omni.physx.fabric.
Sorry about the trouble.
Regards,
Ales

Yes, that is the one I meant. Thank you.