Create a document with an envelope as that size and save it as a template.
Then use a formletter type mailmerge based on a document created from that
template. The only thing different about an Envelope type mailmerge is that
it gives you the opportunity to specify which envelope you want to use.

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Hope this helps.

Please reply to the newsgroup unless you wish to avail yourself of my
services on a paid consulting basis.

Doug Robbins - Word MVP

"DigitalDragon" thedigitaldragon[at]gmail.com wrote in message
...
We use A6 (6.5" x 4.75") envelopes frequently, and this is a pretty
standard
size. Is there a way to download or create addtional envelope entries in
the
envelope options, or do we have to do a custom setting for each merge?