Extend [Left] & [Right] to work from elements other than notes and chord/rests
If an element other than a note or a chord/rest is selected, like an articulation, an accidental, a text, a fingering, the commands to move to the previous or next element ([Left] / [Right]) are ineffective. In fact, when one of those elements is selected, a mouse click is the only way to select anything else.
The proposal is to extend the functionality of the [Left] and [Right] commands to move the selection to the previous or next chord from as many types of elements as possible.
This would be useful in particular after adding one of those elements; for instance an articulation just added is selected and resuming editing on notes requires a mouse click disrupting the work flow.