Hey @eriDerGO,
Unfortunately you don't have any.
I've updated the post you mention:
I Don’t Get How “Set Google Chrome Field to Text” Works
The problem is that HTML/JavaScript is very complex, and it is not possible for Keyboard Maestro to detect every possible permutation of text field.
So – you now have to decide how badly you want to do this, because you're only recourse is to use Chrome's development tools and suss out the address of the field yourself.
Right-click on the field and select “Inspect” from the contextual-menu.
The the fun begins...
If you're lucky you can right-click on the selected element in the code-inspector – copy the Xpath – and have it work in the Keyboard Maestro action.
-Chris