I believe the functionality has been removed, since the Geometric function\Orthorectify button are more accurate. However the documentation may not have been updated with that change unfortunately.
If you are adding your Pleiades as a raster product, then it will have RPCs.
If you want to double check though, you can try the following:
1) Open up the raster layer properties of your raster (in the Table of Contents)
2) On the Functions tab, look for the Geometric function
3) Double click on the Geometric function. And click on the Geodata Transform button.
Here is all the geographic information for the raster product layer.