[ Thanks to Roland
for this link. ]
“Basic design
“To create a basic label or business card document, simply
choose File -> New -> Labels or File -> New -> Business
Cards. A configuration window will pop up, with several tabs for
specifying things like page dimensions, label dimensions, text
formats, and so on.“The Labels dialog has just three tabs: “Labels,” “Format,” and
“Options.” In the bottom of the Labels tab is the template
selector, so you can simply choose from among the dozens of
pre-configured label sheets that Writer supports — including
all of the standard Avery options, plus several other brands. If
you so desire, you can choose [User] as your label type; this will
require you to specify the size and placement of the labels
manually in the Format tab.”