I really think this needs to be looked at more carefully. Yes you can export to csv then import again. But I think it would be so much easier if you could select all the tables, fight click and choose "send to"->"mysql database"
In which case you select the target and click go.
A problem I ran into while trying to do this operation is that I exported db1 to sql. But when I tried to import those files again there is not facility to "import" sql files. Which is strange... Surely if I ca export to those files I should be able to import from the same files again?