I originally "upgraded" from v. 6 Pro to v. 7.0.1 Pro only to find that an undisclosed downgrade was removal of support for SkyWire. I requested and received a refund from Apple.
On the basis of the Version History for the recently released v. 7.0.3 "Restores support for SkyWire", I decided to give it another try. If support for SkyWire has been restored, it's not clear how to implement it because I've tried everything I can think of, including deleting and reinstalling the app, and nothing - just keeps looking for a network connection. Either said "restored support" is a lie, or it's totally undocumented so it might as well be. When Kieran answers questions posted before and after your own request for information on how to implement SkyWire, but ignores your request, I think that's a good indicator that there's no interest in supporting this feature, "restored" or not (not to mention that a similar question on the "User Support" forum has gone unanswered for 2 weeks).
Time to go back to Apple for another refund. Version 6 Pro connects seamlessly via SkyWire and it appears that's the only option I have. Good luck to anyone who "upgraded" to v. 7 Pro on the basis of their false proclamation of restoration of SkyWire support.