Even if the request is as old as Resolve by now.
But you could render the whole thing using the "professional workflow" ad then create a playback timeline with the outputs.
We do this on systems that are to slow to work in RT from RED files or have no external GPUs.
Thanks Sascha... yes it is too bad that Render Cache is not working better. I also wish there would be an easy way to deselect all "Mark clip for render cache" from clips, so at least you could work in a short sequence.
[Sascha Haber]"But you could render the whole thing using the "professional workflow""
Are you referring to a specific workflow? any link?