Can Connect Iq fields only be configured from a PC?
yes!
And the connect mobile app
it is not possible from Connect mobile app
You can configure them from the connect mobile app.
Some CIQ data field do allow changing their settings on the watch itself, but with most with settings you use the Connect IQ mobile app or Garmin Express on a pc/mac
you've tried? because with the 955 I don't have the possibility to configure via app but only via PC.
Yes, i tried and i did. Sometimes a newly improved or updated app might take a bit longer but in the end they all should
What specific one are you having problems with?
With Connect IQ app!