Studio One's edit actions like that are contextual. For example, you can't transpose a track or clip if no track or clip is selected, etc, etc. What you seem to want is for the action Edit > Transpose Chords to have arguments, so that you can, for example, fire a command to transpose all chords by +2 with no dialog appearing. Even if you could select it currently, you'd still have to enter the value in a dialog.
In many if not all cases, the target (clips, arranger blocks, chord blocks, etc) have to be selected to direct an action to them. Selecting a track of any type doesn't necessarily also select the objects on that track.
If you also want to direct the edit focus to those types of tracks with actions, request a focus action with arguments such as Set Focus: (argument: Marker Track or Arranger Track etc).
