Draft site blocks acess from design library

HI all,

im trying to use previously drawn blocks in Draft Site in models in Solidworks.

I have linked the file locations to my library folder and the come up, but if i try to drag them into a model or a drawing i get loads of other artifacts pulled in.

If i mouse over the item its shows up as the part.

and this is what i get if i drop it into the model or drawing.

Is it because they are DWG images and need to be converted?

just need a bit of guidence on this please.

Thanks in advance.

SolidworksSketching