Short answer
No, you cannot edit a document directly within AskTuring.
Full explanation
AskTuring does not have a built-in document editor. If you need to change a document:
Download the file from your Project.
Edit it using your preferred application.
Re-upload the updated version to the same Project.
When re-uploaded, the system will treat it as a new version and update search results accordingly. To make sure the system correctly understands it as an update, make it clear in the version notes that it is a newer version of an existing document. If the file is identical to an existing one, the duplicate detection feature will prevent it from being uploaded.
Tips
Keep original file names consistent when replacing documents so they are easier to track.
If you remove an outdated version, be sure the updated file is fully processed before relying on it for queries.