Thank you Peter for taking a look:
https://drive.google.com/file/d/12tocH4JK1SKjvcGGOmp_CO3aCu-qebS3/view?usp=drive_link
I created a new field group and added those fields. They now allow me to edit the input, but would not display on the front end...then...
While troubleshooting another issue with CPU spikes on saving Bricks templates, I turned OFF/ON Fluent Forms base/Pro/SMTP and WPStaging Pro / base, and then happened to check the field functionality after that, and now they all allow input changes (will keep an eye on this)...but the format of the date/time field is not what I expected.
In this screenshot...the two top displays are the NEW fields. The two bottom displays are the OLD fields (which now permit input changes, and display) but I'm not clear why I'm getting two time formats in the date/time display(s) and on the OLD time display...er...that ain't right...likely I should dump those and use the new fieldset?
https://drive.google.com/file/d/12ufvZtXqy6orTXgrx_dEjoAjs_Nm6VBY/view?usp=drive_link