+ from_utf8("substack")));
+ flag.setEnabled(false);
+ return true;
+ }
+ // in contrary to \subarray, the columns in \substack
+ // are always centered and this cannot be changed
+ if (s == "align-left" || s == "align-right") {
+ flag.message(bformat(
+ from_utf8(N_("Can't change horizontal alignment in '%1$s'")),
+ from_utf8("substack")));