xmbind man page
xmbind — Configures virtual key bindings
xmbind [options ] [file ]
xmbind is an X Window System client that configures the virtual key bindings for Motif applications. This action is performed by mwm at its startup, so the xmbind client is only needed when mwm is not in use, or when you want to change bindings without restarting mwm. If a file is specified, its contents are used as the virtual key bindings. If a file is not specified, the file .motifbind in the user's home directory is used. If this file is not found, xmbind loads the default virtual key bindings, as described in VirtualBindings(3).
This option specifies the display to use; see X(1).
VirtualBindings(3) and X(1).