I’ve been able to get the first three done, but I’m trying to present the skills in a table with a custom column that gives the user the ability to rate.
If you’re just needing to have the user select from static values in a dropdown, there should be the option to input labels and values in the column settings:
You're in the right place, you'll just want to make sure you've set the column to be editable, then click on the fx button to the right of data source and you should be able to hard code in the values you'd like to display!