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First we need too add Composite Document to selected object (of type that allows content) -> use right mouse button click on selected object on Grid Panel and select New drawing option
This creates a Composite Drawing. Toolbar will appear in the top of the Viewer. Click on Manage button to open Composite Drawing Manager.
In Composite Drawing Manager click on Add Raster button to get Upload raster drawing dialog.
Select raster image and optionally you can also add .taf parameter file. Next, click on Upload button and import will be done.
Raster file will be added and it's content displayed.
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