File psl-1983/3-1/doc/nmode/nm-windows.function artifact 33bdd9c1d0 part of check-in 5f584e9b52

.silent_index {two-windows-command} idx 18-1
.silent_index {one-window-command} idx 18-1
.silent_index {other-window-command} idx 18-1
.silent_index {exchange-windows-command} idx 18-1
.silent_index {scroll-other-window-command} idx 18-2
.silent_index {view-two-windows-command} idx 18-2
.silent_index {grow-window-command} idx 18-2
.silent_index {visit-in-other-window-command} idx 18-3