Touchscreen "Auto" mode (outside Sleep mode)

How can one configure the touchscreen mode to be "Auto" by default?

Background for the question: I'd love to be able to use this mode regularly, i.e. also outside of sleep mode, which means that the touchscreen is on but you need to press a button first to use it. My greatest problem with the touchscreen in ON mode is that it gets activated by water when I hit the shower.

When in Sleep mode, the touchscreen can be:
1) disabled, in which case it is OFF
2) enabled, in which case it goes into AUTO

If the watch is NOT in sleep mode, then is it either ON or OFF, with the former being always on. I'd like to be able to set it to AUTO or have a similar behaviour as described.