[Tom Sefton]“can someone with a high spec HP machine, or similar PC build give me some kind of idea of performance when working with footage that requires serious grunt. Like 6K red dragon footage or 4K red epic footage?”
That’s a good question to put to the guy who wrote the article I link to below. There is a submit a comment section you can use for just that. This guy is a Mac editor working with a powerful PC for this one project involving native 6K footage.
Here is the link: https://vashivisuals.com/6-below-editing-in-6k/
A three-step process to accomplish what you’re after:
1. Select the tail of the adjustment layer by clicking on it.
2. Press the End key.
3. Press the E key and voila.