The only way to get a different ad size is to create a new ad unit.
I'm not sure what you mean by you put a name, but don't know where to put the other description.
The ad name is really just a way for you to know what the ad was for - if you use something like "mywebsite-homepage", you'd know just by looking at the ad in your adsense account that was where you put it.
I'm not sure what "description" you mean. |