Default? Selection without background (export just non-transparent items)

[Busenitz]

Would love it if I could set the default export (SVG or PNG with transparent background) to only save the non-transparent items.  I am often creating PNGs with a transparent background and it seems cumbersome to have to always select the visible items, then go through the menu to choose to not save the whole document.  

In CorelDRAW, the default is that it saved the non-transparent items with a transparent background in between, and cut off the transparent margins.  I really miss this and wish there was a way to make that be the default if I wish.