The highlighted fields are only visible when the position property has a value attached.
The user is forced to add a value, even if the value is inherited, for instance from a virtual class.
Not sure if there are more cases like this, maybe it’s just a remnant like principle from the block defaults.
Thanks @Marius.
This behaviour should be improved in 1.2.6.
There’s also an ongoing action to make all inherit options that appear as options to properly apply as inherit.
Thank you or addressing this @Louis. It’s working fine.
Also for making the inherit value generally available, highly appreciated 
