A:Answer No, as of this writing, on 11/28/2017, the JBL Link 10 (and I believe it applies to the other two Link speakers) does not have support of the JBL Connect app. Could support come in the future with an update, possibly, but you'll need to ask JBL if it has plans to add the Link speakers to the speakers compatible with the app.
Sorry if I come off condescending, but if you look at the supported speakers in the JBL Connect app, the Link speakers are not included. However, I did try to use the app with the Link 10 and the app would not recognize it.