A family of Microsoft word processing software products for creating web, email, and print documents.
You need to select a "range of text" for the group command to activate. Word is picky about this.
For purposes of grouping, in a table a cell can be a range of text. One or more contiguous rows can be a range of text. A column cannot be a range of text. Multiple cells (but not a complete row) cannot be a range of text.
An entire table and more can be a range of text.
The following macro should set all checkbox content controls in a document's body with the property of "no delete."
Sub CheckboxNoDelete()
' Charles Kenyon
' May not work for checkboxes inside headers/footers or textboxes, haven't checked
' Sets property for all checkbox content controls in body of active document to "no delete"
' Checkbox may still be checked on unchecked
' 21 June 2017
'
Dim CCtrl As ContentControl
For Each CCtrl In ActiveDocument.ContentControls
If CCtrl.Type = wdContentControlCheckBox Then CCtrl.LockContentControl = True
Next CCtrl
End Sub
For instructions on using, see Graham Mayor's Installing Macros.