If i select points , i can see they will be hightlighted in the spreadsheet. How to do the opposite ? i want to select the points in the spreadsheet and have the associated points are highlighted in the 3d viewer.
is it possible ?

Put down a group node set to points.

In the base group parameter enter manually the points you wish to be highlighted ( what you see in the spreadsheet)

And you can do it in ‘range notation’ instead of individually each number e.g.

1-1200 1248 1276 1300-1425