If you look at the change log, it says editing custom de-ice pads will come later. Though if you open up the GSX profile for LSZH you can see how it's coded so it might be possible do create them with a bit more effort.
[general]
afcad_path = fsdreamteam-airport-lszh-zurich\scenery\FSDT_LSZH\FSDT_LSZH_AP.bgl
deice_areas = [(47.460101708793765, 8.561248453982142, 96, 20, "Rwy 10/28/32-C1","VgdsDeIceWall"),(47.459650446235834, 8.561355131384458, 96, 20, "Rwy 10/28/32-C2","VgdsDeIceWall"),(47.459218633671355, 8.561177747064795, 96, 20, "Rwy 10/28/32-C3","VgdsDeIceWall"),(47.46578573287583, 8.547033410825199, 334, 20, "Rwy 16-F1","VgdsDeIceWall"),(47.46596469343326, 8.54762788130067, 334, 20, "Rwy 16-F2","VgdsDeIceWall"),(47.46614446609993, 8.54822540052842, 334, 20, "Rwy 16-F3", "VgdsDeIceWall")]
creator = Fsdreamteam