startprogram asked:

"I must create 30 menu modules, and show depend on K2 article
I already create 30 menus, each with 5 menu items
Is it possible to programming code and show menu in one metamod module, depend on K2 item?"

Answer:

Yes, you can put all of these into 1 MetaMod, to save you having to create 30 different MetaMods (as well as the 30 menu modules).

You could do it like this:

if ($option != "com_k2") return; // bypass the rest if it's not a K2 page
switch ($id) {
  case '352split-marjanske-crkvice': return 171;
  case '403split': return 171;
  case '999somethingelse': return 1001;
  case '998nicetown': return 1002;
  // add more case statements here, each
  // returning a different module number
}
// always follow the last case statement with the end bracket you see above!