Download Avery DeisgnPro freebie software.
It has innumerable templates including 5160 (which is 30 labels per page).
In some other software (Photoshop, etc.) generate your billing address label on a 1" x 2 5/8" file and save as jpg. You can put text, logos, etc. on this.
In DesignPro select 5160 and also select "All Same" and "Edit Panel" at top left of page.
Drag your jpg file to the label template that appears in the center of the page and drag the corners of the image to adjust and fill the template.
Do "Page Preview" to make sure all 30 have the same label and print.
Undoubtedly other and maybe easier ways of doing this but this is the workflow that I use and it goes very fast