There’s often only one diff option available for files listed under “Incoming changes”. In that case, it would be great if Ctrl-D was the shortcut for whatever option that was. If context-dependent shortcuts aren’t kosher, having any shortcuts for the two options would be great (or surfacing the shortcuts, if they exist).
Thanks for the suggestion! I’ll mention to the team that there’s a desire for shortcuts like this in the Plastic SCM window.