Back to the theme of cheats.
Such console (via F12) commands helped me a lot to get rid of grind.
At the initial stage of the game:
SugarCube.State.variables.charge =40
Later I got bolder and used this:
SugarCube.State.variables.charge =400
As I was proved, these commands do not break the game in the slightest, but the time saving is very significant.