How to get and change the sourcecode (xhtml, etc) of a Web templates in BW 7.3 in ABAP

Hello,

can anybody tell me a FM or a Class which i can use to give me all information about a Webtemplate in BW 7.3 in a ABAP Programm.

I will get all information (xhtml sourcecode, etc) and then i will create a new Webtemplate with this information. I will change the name and some things like Dataprovider, etc.

I hope anybody can help me, thank!

Regards

Florian