Pretty much the same way as you would with cut shots. On most one rail banks, you should be able to look and have a reasonable idea of where you would aim to hit the shot. That should tell you which perception and sweep you need to make to hit the shot.
Keep in mind CTE takes you to the geometrically correct aim line with a slight over cut. This is the same for banks. You will have to tweak speed, cut angle, slight side English to account for table variation, cut induced spin, etc. The same as you do with any banking system. The advantage of CTE is that it takes you to the correct mirror image angle with a slight over cut. That will make a lot of 15 degree perception banks with medium speed CCB hits.
Practice it a bit. If you miss by a 1/4 Diamond or so, you likely had the wrong perception. Adjust accordingly, try again. If you miss by a little, adjust speed, vertical and side English slightly.