OVERLAY... ⌘L Allows you
to draw other channels in the plot area in addition to the active channel.
Note that Overlay is not available in multi-channel display mode.
A channel selection window appears in the lower left (the button for
the active channel is switched off). Select any or all of the available
channels, then click the'custom' or 'Done' button.
 If you clicked the 'custom button, you can select two additional options (if you clicked 'done', the program defaults to dashed lines and overlay on all subsequent plots).
- Whether the overlay appears only on the present plot area, or whether
all subsequent plot areas (different channels or different screenfulls)
also show overlays. To switch this option off, go to overlay selection
again.
- Whether the lines for overlain channels are drawn as dashes or as solids.
After you click the 'selection OK' button, data about the selected
channels are drawn in colors corresponding to the color code in the lower
left window, and the overlay operation itself begins in the plot area.
- All channels are drawn in black in monochrome mode, which may make
identification of different channels difficult.
An easy way to do a simple overlay (one channel only, no
options for dashed lines or subsequent plotting) is to hold down the 'option'
key and selecting the desired channel from the main keyboard number keys
(not the keypad). This only works for channels 1-10, however (key 0 = channel 10). |
CLEAR OVERLAY This removes any overlay traces and redraws the plot area.
COMMENTS
 This submenu has
two items:
SHOW COMMENTS Toggles display of the file's comments in a small window. If you click on this window, another window opens to allow editing of the comments. Comments can be essentially unlimited in length (32 K of characters), but you'll only see the top few lines in the comments window.
Show block instructions Toggles display of instructions for selecting blocks and switching screen views (normally shown in the lower right of the display, but it can be removed with this command if it gets annoying).
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