Tagging control for string array values.
Just add tags by typing, then tab- or arrow- or mouse-selecting.
Set the allowNew property to true so that anything goes.
Tags can be forced to be picked only from a specific datasource or set of data:
PacemTagsElement can be injected into an autogenerating form the following way:
[ {"prop": "tags", "type": "array", "display": { "name": "Tags", "ui": "tags" }, "extra": { "allowNew": true, "allowDuplicates": false, "source": [] } } ]