Hi max1e,
Thanks for the question. The situation has not changed, as before, and with the version released on Wednesday this week.
The only way to cache is with all frames before they need to be calculated; the RS Volume allows them to reload and offset the range if needed.
Please open a "ticket" with the "Share your Idea" here:
https://www.maxon.net/en/support-center
I indeed will support anything in this direction.
Cheers