[xor_]

As a workaround, you could use my old light and shutdown button mod. It adds an additional icon for these functions to the reader menu. On my H20 I feel there's enough screen real estate for both additional icons.

On the smaller devices, space is more scarce, and I've actually made versions that use only one of these icons some time ago. But never got around to releasing them. They're included here. The shutdown version is also updated for KSM8.

Instructions included, as is the original version for switching back.

Haven't tested recently, but think it should work with most recent koreader. Report back if it doesn't.