Rhino 8 Create ToolBar Button

PointCloudContour and PointCloudSection don’t appear in the list.

Point cloud contour is missing because there is no button to copy for it… you’ll need to create one using the _PointCloudContour command from the menu ,
but section is there.

Right, which is why I’m trying to make a button. Window reads ‘Select a command’. Is there another way to do this? I did this in R7 with ease.

This is how its done in R8.
New Toolbar Button > New Command > Paste or type in existing Command > No Command > Appearance > Finish Button