there are 2 right click functions (deleting and cansiling) and you can change them in the controls. i personaly preper the simplistic option, but you can set the cansle build function to be something else if you want
The two functions are "Deselect" and "Break Block". Like you, I find these two functions both work well on the same right-click. Still, that doesn't address the 9th suggestion. That suggestion is about how "Deselect" basically also performs a "Clear Construction Queue". If there were a third input for Clear..., I'd gladly remap that.