Customizing possibilities and logo in customer SAP system

Hello guys,

I'm facing the following problem. I created a report in my companies namespace which should be transfered to customer SAP system. Now in the report there is a button which should only be visible if the customer ordered some other product which is not as ddic object available. Now I'm searching for a way of customizing how I can fetch if the user uses the other product or not. I tried with customiziing table with checkbox field which canot be set in SM30 transaction and has to be set via external Zprogram. But that does not sound that comfortable. Any other ideas?

And another question is about the company logo. Is there any more comfortable way of using a logo in a report in a custom system without uploading it in Se78

Regards
Michael