This custom coded action will:
- remove duplicated words in a comma separated string
- remove extra comma "," not preceded by a word or not followed by a word (", ,")
- replace "_" by spaces
- remove extra spaces
- capitalize first letter of a list item
For instance, processing this: "Sales, marketing, Operations, , marketing, , Technology, Information technology, information_technology"
Would output this: "Sales, Marketing, Operations, Technology, Information Technology"