13.1 The View Tab
The Model Viewer gives an overview of the contents of the model. It also gives access to the property window which is used to set many of FEBio Studio's display settings. The Model Viewer is accessed by clicking the “Model” tab button on the Tab Window.
The top part of the Model Viewer shows a tree-view of the contents of the model. Each item can be selected, and when selected, the property window at the bottom lists the available properties for the selected item. Properties can be edited by selecting the corresponding item in the value column.
The name edit field in the middle of the Model Viewer can be used to change the name that refers to the selected item. The delete button next to the name field can be used to delete a selected item. Note that this only works for items that the user has added to the model. See Chapter 6 for more details on adding items to a model. The enable button, the checkbox located next to the name field, can be used to activate the selected item in the Graphics View. What this precisely means will depend on the particular item, but in general this means that if enabled, the item will be displayed in the Graphics View, and if disabled it will be hidden. 
Note that if an item is disabled, its name will be drawn in italics in the model viewer.