Adding multiple items to a tree

We have a temporary packet that we we're trying to do some quick dissecting on.

basically we read a field and its value determines what the next 10 or so fields are. Is there a way to overlay text for those next 10 fields, something like this:

some string { "first", "second", ....

}

proto_tree_add_item(some_tree, next_ten_fields, tvb, offset, 10, TRUE);

and have the following appear in the tree:

first: value second: value .... ten: value

If so the next question is probably how to adjust the size of each field (1 byte or 4 bytes).

Thanks, Brian