Activate the asset command. For more information on how do so, see section 9.11.2.
Make sure the assets you wish to select are shown in the model. For more information on how to show assets in the model, see section 9.13.2.
Go to the drawing window (see image below).
Click "Select All" (see the first image below). When you do so, all assets shown in the model will be selected and marked red in the model and the graphical search field (see the second image below).
