Yes, select all and then exporting objects (like primitives) is sort of the same thing as doing them individually for selecting filenames, except that you don’t have to manually find them all in the scene. The DAZ Studio bridge, for objects like primitives, does do everything at once though.
Unfortunately for trees it looks like you are out of luck. They don’t appear to transfer correctly across the bridge, and if I select multiple trees and try to export them, it appears to only export one of them, unlike primitives where it did multiple exports in a row.
Perhaps somebody else has another idea?
Well it would be great If it have better and faster render engine, otherwise I love bryce trees and plants I love carrara wind effects at tree shape section and I love Daz characters as well. your products are amazing but no external and faster render engine like thea. Otherwise I used to learn blender which is my main app. So it would not be a problem If I buy carrara standard for $150 and I could render there everything DAZ and Bryce imported scenes by other render engine like thea render. But anyway this would be a plus adding collada export into Bryce with wind features of plants working with blender together. this is complicated I know.