I'm not sure what you mean.
If you have a database from another wallet you can ofcourse use it with this version aswell. For h2 databaes you need to copy the file burst.mv.db from the burst_db foler in the old wallet to the burst_db foler in qbundle folder. then all you need to do is to set Qbundle to use H2 as database. This can be done with the Database-> change database option and select no copy.
If i missunderstood you you have to explain abit more what you have done and what you want to achive.