Choosing specific PCIe Hard Macro - Arria10GX

Hello,

I am interested in using the Arria10 GX Dev Kit and using the PCIe Hard Macros in them. I have managed to create a PCIe Hard IP in a QSys project but I can't seem to understand how to constrain it to use the specific Hard IP.

From what I understand, there are 4 Hard IPs and the constraint specifies which transceiver lanes (so which banks and which pins) you can use for each of these IPs:

So I thought when I created the IP, in the "Parameters" section I would choose which one of the IPs I am using. However, it doesn't seem to be a parameter to specify this.

I know I can go into the "Pin Planner" and map out the specific rx and tx lanes and the clk and reset to the correct pins but I wasn't sure if that was the way to do it. How do you know you are selecting the right pins for the PCIe hard macro in that case? Does an error message show up somewhere when you are using the wrong transceiver pins for the specific hard macro?

Thanks!

Prateek