Eraser Shift plugin

Is it possible to implement that the plugin also jumps to the brush tool if its currently not selected?

Right now if you use for example the lasso tool, you would need an extra shortcut to go to the brush tool and than you could use these two shortcuts.
Better would be if i press the shortcut for the eraser that it also in the first step checks if the brush tool is selected or not and if not it select it and than goes to the ereaser mode.