Updating Member Information
To update a member, go to the Members list and click on the member. Then chose the "Update" option.
Then you can make changes / corrections / updates to their member details.
Some of the main member information:

The remainder of the member information is also available.

Note: Immediate changes, not a history of changes
When information is changed this way the data is immediately updated, it is not recorded as a career event change, e.g. a promotion or change of call sign / radio designation. Those can be performed here as a member change.