Maybe the manufacturer has texture you can download.
You could try creating a new surface with one of the 'shingle' type roof tiles and swapping out the textures used by that new surface with one for the hexagonal you downloaded.
There is Internal Engine for your 3D work views and BIMx and Cinerender for the photorenders to adjust in Surface Settings.
Erwin Edel, Project Lead, Leloup Architectenwww.leloup.nl
ArchiCAD 9-26NED FULL
Windows 10 Pro
Adobe Design Premium CS5