Show the user only his entries in the infoblock in the Bitrix admin panel?

Question

1C-Bitrix

There was a task to show users only their own entries in the infoblock in the Bitrix admin panel.
The support service said that there is no such boxed solution.
Look at the implementation option:
1) I made a copy of the infoblock display file from /bitrix/modules/iblock/admin/iblock_list_admin.php
to an arbitrary location
/bitrix/components/modules/iblock_list_admin.php
2) In the /bitrix/admin/iblock_list_admin.php file I added the following edit:
(depending on the number of the information block, I include a custom file)

if($_REQUEST['IBLOCK_ID'] == 223) {
  require($_SERVER["DOCUMENT_ROOT"] . "/bitrix/components/modules/iblock_list_admin.php");
} else {
  require($_SERVER["DOCUMENT_ROOT"] . "/bitrix/modules/iblock/admin/iblock_list_admin.php");
}

3) In the custom file /bitrix/components/modules/iblock_list_admin.php
Before the line
$rsData = CIBlockSection::GetMixedList($arOrder, $arFilter, false, ['ID', 'IBLOCK_ID']);
Added a check for the user group and added a filter by the changer.

if (!in_array(22, $USER->GetUserGroupArray())) {
    $arFilter["MODIFIED_BY"] = $USER->GetID();
}