Example Zoom
->[U] HI<cr> 1<cr><cr>
Set histogram number 1 display with default update frequency
->[Z] 3<cr><cr>
Select zoom setting number 3, display
->[Z] -2<cr>5<cr><cr>
Remove setting 2, renumber settings, select setting 5, display
->[Z] b<cr>30.4<cr>567.23<cr>6<cr>
Book manually a zoom setting , selects it , display
->[Z] r<cr>7<cr>
Record new settings with mouse by selecting either low or high limits on the
histogram display by clicking the left button and a high or low limit and
clicking again on the left button, selects it, display.