Are there any acceptable methods for attachment to hardi-plank?

Let me be specific with some of the things I need to put back, after
having my house re-sided.

1. small clamps to hold TV cable in place.
2. Metal clamps to hold 1" power conduit in place.
3. re-attach wrought iron gate that was formerly screwed directly into
wood siding.

I would guess there is a point where I have to drill through the hardi
and attach to underlying house frame studs. Any opinions, help,
experience would be appreciated. I did search on this group and did
not find anything. I also could not find specific information on the
James Hardie website.

Bob Davis
Houston, Texas