(Question) Selection features's doc and accessibility

[Raccoco]

In the pricing page of the RevoGrid website, i see the free version has two features in the Selection section; Cell Range Selection and Fill Handle
However, i can't seem to find the documentation anywhere, and i only see the features in the pro/paid demos, the features being imported from the '@revolist/revogrid-pro' too.
Are they really free features? And if they are, could someone lead me to their documentation page?

[revolist]

Its a core feature (free)
https://rv-grid.com/guide/api/revoGrid

Please check an api to enable it let us know how does it work for you.