I'm not sure wether this is bug or feature but is great.
If you've a cloud in mulutiple chunks, segmented semantically in subclouds, like can be in a .bin
If you whant to remove points in multiple clouds simply do a multiple selection and run the scissors tool.
Works also when selecting the root folder.
I was quite surprised by this, I discovered by chance.
multiple segmentation
Re: multiple segmentation
Ah no that's an official feature that appeared a few releases back.
Daniel, CloudCompare admin