Text from Rows from multiple models into a Note field

Questions
2

I haven’t done this, but could you create a UI only model with a text field, then have an action that updates the value of that field with the current value of the field and the value to add on at the end for all rows in the model?

example:

Model: UIModel

Field: UIField

Action:

Update UIField with:

{{$Model.UIModel.data.0.UIField}} {{DocName}} {{DocDate}}

the initial value of the UIField is blank so the first update it would add {{DocName}} {{DocDate}}. The second update there would be a value in the UIField already, so it would add {{DocName}} {{DockDate}} to the end and so on…