/ic/ - Artwork/Critique

Photoshop.
The eyedropper tool will sample colors according to the setting in the toolbar (All Layers, Current Layer etc.)
Alt + click is a shortcut for the eyedropper tool for quick sampling.

Question: are there separate shortcuts, or can you set up separate shortcuts for using the eyedropper with different sampling settings (Current Layer vs All Layers), or do you always have to manually set the sampling setting whenever you want to change its behavior?
I often want to swap between these behaviors and having to go to the tool's settings whenever I want to change it, saps my workflow.