T4EO (Top 4 Edge Orientation) is like the final layer cross in the CFOP/LBL method. Most of you probably learned this algorithm when you were a beginner, so this step should be very easy for you.

For those who find T4EO stupid.

VHLS is a subset of ZBLS consisting of 32 algorithms. You can skip T4EO when inserting the last F2L pair of 3-mover. Also, by remembering ZBLS, which consists of 302 algorithms, you can induce T4EO Skip from all the last F2L cases