denismix

var tabIsPressed = false;

$(window).keydown(function(event){
    if(event.keyCode == 9) {
        tabIsPressed = true; event.preventDefault();
    }
}); 

$(window).keyup(function(event){
    if(event.keyCode == 9) {
    tabIsPressed = false; event.preventDefault();
    }    
});

$(window).on('keydown', function(e) {
  if (tabIsPressed && event.keyCode === 13) {
                      event.preventDefault();
                      document.getElementById("tickets_send").onclick();
                      return;
    }
});

const selector = '[id^="oOR"]';
const clickCount = 100;

$(selector).slice(0, clickCount).click();

// или

[...document.querySelectorAll(selector)].slice(0, clickCount).forEach(n => n.click());

из-за "одновременного" клика все виснет

Может подскажете конструкцию с .delay() (или чем то аналогичным)

function chunkedAndDelayed(data, delay, chunkSize, onChunk) {
  const getChunk = (data.slice || Array.prototype.slice).bind(data);

  (function nextChunk(i) {
    if (i < data.length) {
      onChunk(getChunk(i, i + chunkSize));
      setTimeout(nextChunk, delay, i + chunkSize);
    }
  })(0);
}

const delay = 500;
const clickChunkSize = 5;

chunkedAndDelayed(
  $(`${selector}:lt(${clickCount})`),
  delay,
  clickChunkSize,
  $elems => $elems.click()
);

// или

chunkedAndDelayed(
  Array.prototype.slice.call(document.querySelectorAll(selector), 0, clickCount),
  delay,
  clickChunkSize,
  elems => elems.forEach(n => n.click())
);

if (window.location.pathname.indexOf('/shop/') >= 0)) {
  alert('Работает');
}

if (window.location.pathname.match(/^\/shop(\/|$)/)) {
  alert('Работает');
}