It'd be nice to be able to paste irregular shaped selections without being forced to void blocks that aren't actually occupied in the paste. Example, a circle has air gaps around the corners and those air blocks are treated equally to blocks. It would be extremely nice to ignore air optionally, since sometimes it's necessary.

I think there’s a setting when pasting to not overwrite blocks. Wouldn’t that work?

Oh I believe you that it's more efficient. That's unfortunate that there's a limitation for this, it really is a helpful alternative to WorldEdit, and I'm missing the -a context command from that.

Well my issue rn is that I'm trying to make street tiles, but I need it to overwrite in order to replace the ground level; however, the square selection prevents circular tiles from being pasted with less effort than just doing them by hand by voiding the air blocks as well.

Unfortunately because of the way the data is stored I need to capture the air blocks. Believe it or not it’s much more efficient that way

I’ll see if I can find a way :)