Persist locking for data export

I want to export sheet data as JSON, but retain any locking of cells that the user may have added. Is there a way to do this?

The reason is that I want to reload the sheet at a later point (using the exported JSON) and retain the locking as the user has set up.

We extended this functionality in the dhx.Spreadsheet v5.1 update.
Now the “locked” status string in the spreadsheet data.
Please, download the latest available dhx.Spreadsheet build from your client’s area to get this feature.
Thank you for your report.