Select or Other
Adds a widget to list or reference fields that let's you select "other" and provide a value.
See also: Select Text Value
Issues to watch:
Modules
Entity Reference Display
Provides an entity reference field that includes a view mode selection.
Field View Mode
Entity reference field formatter that allows selecting the view mode to display.
Entity Display Mode
Add a field to entities to select a form or view mode to use when editing or displaying the entity.
This may be more useful with paragraphs than general content types.
Conditional Fields
Makes it easy to show/hide fields based on conditions in other fields.
Project updates
Print tags as comma separated list, prefixed with #
Project
Currently using Views, Tag formatter module.
Check out other modules.
TODO: Improve part entry
Project
Groupset selection
If a groupset series is selected, auto populate the groupset/brand.
Remove extra fields from Part content, move...
Tips
Enable Telephone Module To Use The Field
Telephone is a module included in core, but may not installed by default depending on the profile you use.