I want to create labels in A4 Avery format, e.g. four labels on an A4 page 99mm x 138mm, and eight labels on an A4 page 63mm x 99mm. Do I use your word processor or your database programme?
Writer
New/Labels
Clicking Sheet will give you Avery product codes in Type (dropdown list).
Format tab will give you bespoke options.
You can link Database with your info.