Ed Chu's question Is “I was having a walk” correct? has been closed (with just one vote plus mod) for supposed "proofreading". I think the proofreading flag was inappropriate here, as the question is clearly about usage, and the conflicting comments by @MichaelHarvey and @Kris indicate there are clear differences in usage, no doubt regionally based.
In my view the better option would have been to close Ed Chu's question as a duplicate, since one of the purposes of keeping duplicates in the system is to enable multiple search solutions to direct towards the one good question. Note that currently the first entry returned in a search for "having a walk" is the closed question, but as it hasn't been closed as a duplicate, it doesn't direct users to the "good" question, and there's a small risk of it being deleted entirely.
I'm not sure what should happen in this situation, i.e. what action should be taken (other than posting here) in the best interests of our site. I don't want to edit the closed question to change it from "proofreading" to a valid question on usage, so that it can then be reopened - I would then have to flag it as a duplicate, as should have happened in the first place. Editing would therefore be a waste of time.
My Meta question is therefore:
Is there a way - perhaps at moderator level - to change the closure from "off-topic/proofreading" to "duplicate/link-to-question" directly, rather than me having to engineer a tiresome edit-reopen-flag-close process?