You probably want to use a SEQ field.

Create a page of labels.

Put the following centered in each label:

CMD13
{ SEQ myNumber }

The {} field delimiters can only be put in using Insert > Field or Ctrl-F9. You can't simply type them.

Once you have one label, you can copy from one to the next.

When you have a full page of label, Ctrl-A, Ctrl-C to copy all.

Then Paste until you have all the labels you want.

Then go back to the first page, Press Alt-F9 and change the code in the first label to:
{ SEQ myNumber \r 1112 }

Then press Alt-F9 again. Press Ctrl-A and then Press F9 to update all the fields.

Hope this helps.