Some chanukiyot have back-plates, like this one:
When lighting such a chanukiyah in a window, it seems preferable to have the lights facing the street to maximize the publicity. (For the one in the photo, the lights are visible over the back-plate for some minutes, but not enough to meet the halachic requirement.) But lighting with it in that position can be tricky. Is one permitted to rotate the chanukiyah after lighting? I know we can't move it from inside to outside after lighting (Shabbat 22b, OC 675.1) and must "light it in its place"; I don't know whether that means no movement at all or just no relocation.
(This is not a l'ma'aseh question despite that being my photo; with multiple chanukiyot one can publicize in both directions. I'm just wondering if one who had to choose would be able to rotate this kind of chanukiyah.)