There are plenty of tutorials and examples posted here, have you tried searching the forum?
https://www.construct.net/en/tutorials/drag-and-scroll-the-screen-using-touch-control-1351
https://www.construct.net/en/tutorials/itemmenu-scroll-791
https://www.dropbox.com/s/50cl8ipks3wyr95/ScrollingList.capx?dl=0
Thanks Dop, it worked like charm.