well to be honest.. zell is very poor for freeride. Kaprun is ok, but you have to take the first lift up with fresh snow
dont go all the way up but only ski the powder under the langwied (from alpincentre). It used to be great, a couple off years back, but then the black mamba wasnt there and the skiroutes where not there. so alot less people in the terrein. start with the left site routes/terrain, than from kristalbahn. also try to traveres out to the right of x2 (to tristkogel)and then back down to langwied 1976m (there is only a small rockformation you have to try to avoid but you can clearly see that when standing at the bottom of the langwied (rightsite looking up) traverse out from kristal bahn there follow the line from this route below (you will enter halfway)
https://www.google.com/search?q=langwiedboden&tbm=isch&tbs=rim...:
Best to take the Salzburger super skipas and go skiing in saalbach and fieberbrunn you can si down from zell to viehoven on the backsite of the mountain and take a 5min skibustrip to saalback