copy data from one form field to another

Not only is the value shared between the fields with the same name but some other properties like "required" and "read only" are also shared. So if one wants to have another field with the same value but "read only" one needs to create a second field with a different name. In this case, one will need to update the second field when the first field is updated. This could be done using the calculation action. Under this scenario the update will occur each time any calculated field needs to be updated. One can use the "on blur" action update the second field with a script. Since you have multiple fields with this scenario, I would develop a script that adjust the name for the second field base on the first field's name. So I could have field like "Name" and create a second field like "Name_Duplicate" that would take on the value of the field named "Name" but have some different propertites. One could use the following script in the "on blur" action to copy the value of the field to the second field "_Duplicate" and use in any group of fields.

this.getField(event.target.name + "_Duplicate").value = event.target.value;

When you want the same text in fields assign the same name to the text fields.