[comp.sys.dec.micro] alt key in WP 4.2

VDVOORDE@HROEUR51.BITNET (09/13/89)

I remember having read somewhere of a way to access the Alt key in the
Screen function using a sequence with the Compose Character key but
forgot where. As I am using WP to write in French, not having the Alt
key is a nuisance. Can anyone help me out?