Choices tag for each row of the tabular data

**Is your feature request related to a problem? Please describe.**
You have an NER model which runs inference on data. For each document, you have a set of key:value pairs (from 0 to n) and you manage to tabulate this with Label Studio using this xml.
```

```

**Describe the solution you'd like**
But, you are only allowed `Choices` at a document level, not per "item" level.

**Describe alternatives you've considered**
Allow choices to be set for each row of the table (i.e., per item level)

Any solution much welcomed!
**Additional context**
See attached image

PS. [perItem] = boolean tag sort of tried to do it but did not succeed https://labelstud.io/tags/choices