switch (cmd.action()) {
case LFUN_TABULAR_FEATURE: {
string s = cmd.getArg(0);
+ if (s == "append-column"
+ && (name_ == "gathered" || name_ == "lgathered" || name_ == "rgathered")) {
+ // gathered does not support multiple columns
+ flag.setEnabled(false);
+ return true;
+ }
if (s == "add-vline-left" || s == "add-vline-right") {
flag.message(bformat(
from_utf8(N_("Can't add vertical grid lines in '%1$s'")),