The info provided by F. McLion and the link provides detailed info with reference to "Default develop settings". At import Lightroom will always apply the Default develop settings, either the one created by Adobe or the user created Default.
The "select none" you refer to is other user created presets.
The Default is always applied.
If my personal default import preset is applied during an import, how is it best to undo these settings to a specific image. If I press ‘reset’ will the image revert to having no edits at all and just to be raw image out of the camera?
Also, what does the ‘previous’ button do?
Tip 2: As an alternative to accessing the command via the Photo menu you can hold down the Option key (Mac)or Alt key (Windows). This keyboard modifier changes the Develop module Reset button to Set Default..., whilst holding down the Shift key changes it to Reset (Adobe). Remember to use the standard Reset button after using either so that the new settings can be applied. Also, note that because the develop settings are defined as "defaults" no badge will appear in bottom right corner of thumbnails id Grid view.
Found in this article- Adobe Lightroom - Customising Camera Defaults
Thanks to Ian Lyons.
The [Previous] button remembers the develop steps on one image and applies the same to the next image selected.
So appreciative of this input as I have been trying to fathom this out for days. Thanks!