Where you shower is to be situated on the stud wall, whats on the other side is it accessable e.g. an airing cupboard
If it is you would be able 2 run your cold feed, from bath tap cold feed through wall into cupboard, up the the height where you want shower and back through wall, and into back of shower this way pipe would be concealed.
If not a cupboard of somewhere accessable behind, you could drill hole in bath, tee in to cold feed for bath tap and surface mount the pipe, best if you use a chrome pipe, as it will look better, unless you have brass/gold taps then will look as bad as copper, but youre still going to have 2 run cable which would then also need to be on the surface coming down from above (from loft) in capping
Back to your question no your tiles shouldnt get damaged, unless you realy want a concealed pipe/ cable and cant get behind where you want shower mounting
The main problem is you will need an elctrician to get a cable from consumer unit to shower switch, and from shower switch to shower, the cable will need to be atleast 6mm for a shower upto 9.5kw and 10mm for anything above that, if you dont want it on show that means either chasing out wall (probably) or capping on face of walls, obviously all depends on route and location of main consumer unit to bathroom,
Hope it helps