The phrase "a matter of setting" is correct and usable in written English.
It can be used to refer to the importance or relevance of the context or environment in a particular situation or discussion.
Example: "In storytelling, character development is often a matter of setting, as the environment shapes their experiences and decisions."
Alternatives: "a question of context" or "an issue of environment".
From here on out, it's a matter of setting my legacy in football.
But different though it may be, Mr. Williams said, "security is a business process" -- a matter of setting priorities and strategy, establishing processes and measuring their effectiveness.
It's going to be a matter of setting some precedents," she said, adding, "The companies that are putting these vehicles on the road should have their vehicles operate with due regard to the rules of the road".
Financial planning for athletes is not so much a matter of setting up an investment portfolio or finding a good accountant as it is persuading them of the need to do so.
The show's subtitle — "The First Japanese Delegation, 1860" — makes that pretty clear, and the introductory wall text spells it out: The visit in question, 150 years ago, was "all about trade," a matter of setting up a business agreement.
"Sometimes this is a matter of setting a tone and being very clear that we're not going to be intimidated by some, you know, cyber-hackers," Mr Obama said.
This is not only a matter of set-dressing.
And then once it's launched, it's not a matter of set and forget, but you constantly monitor and get customer feedback and look at how to refine.
The drama is partly a matter of set design: the kids are situated in an hall-like recess, the ominous nature of which suggests that any Cortex failure might result in their being sucked up from a space-station airlock and into the vacuum of eternity.
If I've been away for a week or two it's a simple matter of setting aside 20 minutes to run through my emails.
The hint of poignancy in this modest affair wasn't simply a matter of the setting.
