Hi for everyone, could you please advise how the animation size can be controlled in a new document in Designer Pro?

Basically I have created a custom size animation as 750 x 245 pixels, this has been exported to .swf flash file. So in the document where I would like to use it, applied the File/Import.

But somehow like this the imported object comes with 192 x 192 pixels dimension, in what the main issue is that this is a square, with big white are around the real animation which was a long rectangle. How I could import the .swf file without those white dimension?

Thanks,