I don’t like the Ctrl/Shift mechanism anyway.
The way it is it feels like a secret, and Ctrl/Shift were cheat codes.
Why not a button ‘More options’ or so, enabled only when it makes sense?
Or a Hamburger menu?
In trainings, to explain the mechanism is fun because of the surprise.
In fact it is forgotten fast… a good chance to repeat the surprise.
But what about disabled people?
I know 2 one-handed.
They don’t have a chance, they have to type.
The same was with sub-selection.
But this is now good in V6: