Rockwell Automation 9301 Series RSView32 Users Guide - Manual (Page 398)

Creating graphic displays
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11–105
Peeking at objects
Use Peek to view any or all of the following objects in a graphic
display:
obscured (hidden) objects
numeric or string input objects
the recipe object
objects with animation
objects linked to a particular tag
When Peek is turned on, a red box appears around all selected graphic
objects. For example:
if you select Obscured Objects, all objects that are totally hidden
by other objects will have a highlighted box around them
if you select By Tag and then specify a tag name, all objects
associated with this tag will have a highlighted box around them
The Peek highlight is not visible in a graphic display with a red
background.