Questions about Lidar Data

Hello, i’m using the lidarseg-data to create 3D meshes using lidar point cloud. I have 3 questions regarding the data.

  1. Do all the lidar points have a category? Because It appears that for some scenes we can know the number of points by category, is it available on every scene?

  2. Can I get the category of each point? I would like to have the category to remove some points using the category as filter.

  3. Can I get the scenes recorded in Boston Seaport without downloading the whole data set?

Thank in advance !