We are running into a situation where our users need to copy values from a row in a Grid. The Grid also uses multiple row selection, and the allowCopy is getting in the way by copying too much data onto the clipboard. 

Would it be possible to set a field list in the options for allowCopy so that we can specify which columns are actually copied?

Example: 
allowCopy: {
  delimiter: '\t'.
  fields: [
    'column1', 'column2'
  ]
}

We are also running into another situation where we need to use templated fields, and allowCopy seems to be copying the cell text resulting in very ugly clipboard data. It would be nice if we could specify the datasource value to be copied instead of the cell text

Example:

allowCopy: {
  delimiter: '\t'.
  fields: [
    { field: 'column1', source: true },
    { field: 'column2' }
  ]
}

In both examples, the field name corresponds to the field name specified for the Grid Column.