===Diagonal paving===
Selecting "Pave nearest corner" will pave half of the tile diagonally depending on the paving type being laid.
===Subterranean paving===
Paving underground(in mines) can be done by first reinforcing the mine floor. After the tile is supported, you can apply mortar to the reinforcement. Once the tile is prepared, you're able to perform normal above-ground paving methods(all above options are available underground as well).
It should be noted that paving diagonally is not possible whilst underground.
== House floors ==