Maybe I'm blind but in new version I don't see copy/paste buttons for time keys.

PS. Scrolling to the top of the dopesheet also doesn't work - maybe it's related. I can provide screenshot if needed.

If you can provide a screenshot of this, that would be great. At least in version 1.0.8 and any previous versions I haven't seen them missing.

Strange, but apparently it was a one time problem. Today everything is OK again. I'll take screenshot when I encounter it again. The Dopesheet button probably didn't slide down the dopesheet view completely (so some pixels where still hidden).

PS. In export dialog the binary export shows JSON options by the way.

Fixed it will be in the 1.0.9 update. Thanks.