I need to do something that have: - Person or Group field functionality (type ahead) - Tagging functionality (adding tags or selecting the existing ones) Is there a solution out there that I can use in order to achieve this? And I need it to work in O365 as well
You can create Site Columns that have these properties: Person or Group and Metadata Keyword where users are allowed add keywords that doesn't exist.
These site columns can be added to a Content Type which may be a Docement or a Page or anything else. Navigate to Site Settings and find the links you need in the group Web Design Galleries.