Custom text field with automatic dropdown

[PieterL75]

NetBox version

v3.2.9

Feature type

Change to existing functionality

Proposed functionality

In the custom fields there is an option for a 'text' field and an option for a 'selection' field.
I would like to see those 2 getting married to 'text field with autodropdown'.
The idea, is that any value can be entered in the textfield and that a dropdown is available for all entries that already exists anywhere.
This creates dynamic selections lists that can easily be updated, without the need for an admin to go into the CF section and update the selection values.
Drawback, is that it can become cluttered, and that it requires a way to store all the values of that customtextfield. Maybe #10560 can help here ?

Use case

When creating a cable, we assign a 'project' to the cable using a customfield of the type Selection. This allows us to easily filter out what cables need to be completed per project.
Unfortunately, I have to update that selection each time a new project is started. The projects are not stored in Netbox, only the reference to the project.
I tried with a textfield, but people tend to make typo's.
This auto-populated dropdown for a regular textfield would fix that problem

Database changes

No response

External dependencies

No response

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