
FactoryTalk Historian ProcessBook User Guide
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Click View > Layers. The Layers dialog box appears.
3. Review the following for additional information:
Specifies the index number of the layer. The index is used in
determining the display order (Z Order) of overlapping
symbols. A layer with a lower index number is lower in the
stack than one with a higher number. Higher layers may
obscure symbols in lower levels.
This is a read-only value that contains the number of symbols
on a layer. A composite symbol is counted once and each of
its subordinate individual symbols is also counted.
Buttons at the right side of the dialog box are used to move
the relative position of one layer to another within a display.
As a layer is moved down the list, its index number becomes
larger, and vice versa. Symbols on layers with higher index
numbers may hide or cover symbols with lower-index
numbers. Locked layers cannot be reordered.
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