Early Pin Planning (without HDL)

Thanks for the responses. I typically do the HDL thing myself. The key to the question, however, was the "without HDL" part. Supposedly the whole point of the early pin planning with the "reserve pin" assignment was that you could do this without any HDL. Trying to do this without writing any HDL is convincing me that few people try pin planning this way.

The folks who design boards around here (and do much of the device selection) don't necessarily know HDL.

I did make a bit more progress today. If you enter an assignment like "mybus[255..0]" in the assignment editor, the pin planner will then show all the "mybus[0]", "mybus[1]", ..., "mybus[255]" in the all pins box - allowing you to start drag & dropping them individually onto the chip image. However, the assignment editor behaves oddly with the "mybus[255..0]" assignment - it stays yellow and sometimes doesn't give you the pull-down options in the "assignment" or "value" columns.