I write a lot of expressions in a text editor.
It would be great if you could right click a parameter and copy the path for use in an expression.
For example instead of having to pick whip or brute force figure out something like "thisComp.layer("Animation Controller").effect("Rotation Random Max")("Slider").value", it would be very useful and efficient to just right click the parameter and copy this path.
As it stands I Rube Goldberg it all by creating a dummy expression controller and pickwhiping parameters to it to be able to copy paste the path information.