Im installing a 200 amp square d panel, but Im having a problem, the main services entrance wires comes in from ground up and the panel is made to feed from top down. I invert the panel but now my main breaker is up side down the on is on the bottom and the off is on top. Here's the question does it hamper anything with the main breaker if I also invert that so the main breaker is up right and not to the eye looking upsde down.

Circuit breakers mounted vertically shall have the on position in the up position.

This is why they make panelboards with main breakers laying horizontally , to allow for inverting the panel for top or bottom feed.

In your case, you need to have the breaker at the top , so the breaker handle is up for on and down for off, and need to extend the wires.

How old is that panel? I can't remember that last time I saw a new single phase panel with an up-down main breaker.
Are you re-using an old one?

Electricguy,

Please respond to a post by using the "Answer this question" section rather than the "Agree/Disagree" block.

As to your question about the 2008 NEC, the answer is yes.

The article you are looking for is in Part VII of Article 240. The cite you are looking for is Article 240.81 "Indicating"

What is the part number of your panelboard so that I can look up the specifications.