Outermore

[…] the outer two of which are displaced outwards so as to correspond with the outermore of four bays on the two main storeys; […]

Precisely, the user is not involved directly but through one of their personas, expressed through the outermore layer.

This is due to the fact that the 5f shell is more diffuse than the 4f shell, so that the contraction of the outermore valence shells is increased by relativity to a larger extent in the case of the 6d elements as compared to the 5d elements.