The type of dialog displayed depends on the type of animation controller the selected track is using. The Properties function is unavailable if the selected track controller does not use properties, or the track selection set is incorrect.
Access the Properties dialog through the controllers quad of the right-click menu, or on the Edit menu Properties. The same dialog is also accessible through the Motion panel.
You can also display the Key Info dialog by right-clicking a key in the Key window. Parametric controller dialogs can also be displayed by right-clicking their range bars.
The Properties button is unavailable in ambiguous cases, for example, when a key and a parametric controller item are both selected.
To display properties for a controller, do one of the following:
To display the Key Info dialog for a key:
3ds Max opens the Key Info dialog.
To open the Sound Options or ProSound dialog for adding a sound track:
The Sound Options or ProSound dialog opens.
You can use this dialog to assign a sound file to the animation, which can be displayed in Track View or the track bar.