Как добавить видео в галерею GL27 в Tilda

<script>
$(document).ready(function(){
let playList = {
  '2' : 'https://310401.selcdn.ru/MIXED/unchained_melody2.mp4',
  '4' : 'https://310401.selcdn.ru/MIXED/unchained_melody1.mp4',
  '6' : 'https://310401.selcdn.ru/MIXED/unchained_melody3.mp4',
  '8' : 'https://310401.selcdn.ru/MIXED/unchained_melody4.mp4'
};
for (var key in playList) {
    $('.t994__item-wrapper:eq('+(+key-1)+') .t994__content').before('<div class="t994__video-wrapper"><video class="t994__video" style="object-fit: cover;background-size: cover;  width: 100%; height: 100%;"  preload="auto" playsinline=""  loop="" muted="muted"><source src="'+playList[key]+'"></video><div class="t994__video-btn"></div><div class="t994__video-btn-mute"></div></div>');
};
let videoNum = $('.t994__video').length;
function pauseVideo(){
    $('.t994__video').each(function( index ) {
        let thisVideo = $(this);
        if (  $(this).get(0).played ) $(this)[0].pause(); 
        thisVideo.siblings('.t994__video-btn-mute').removeClass('mute_show');
    });
    $('.t994__video-btn').removeClass('playbtn_hide');
    setTimeout(function(){
        let findVideo = $('.t994__item.t-slds__item_active').find('video');
        if ( findVideo.length ){
            findVideo.next('.t994__video-btn').addClass('playbtn_hide');
            findVideo[0].play();
            findVideo.siblings('.t994__video-btn-mute').addClass('mute_show'); 
        };
    }, 100);    
};
$('.t994__item-wrapper').on('click' , '.t994__video-btn-mute' ,function(e){ 
    $('.t994__video').prop('muted', false); 
    $('.t994__video-btn-mute').addClass('mute_dis');
});
$('.t994__content, .t994__video-btn').click(function(){
    let videoLn = $(this).closest('.t994__item-wrapper').find('video');
    if( videoLn.length ){
        if (  videoLn.get(0).paused ) {
            videoLn.next('.t994__video-btn').addClass('playbtn_hide');
            videoLn.get(0).play();
            videoLn.siblings('.t994__video-btn-mute').addClass('mute_show');
        } else {
            videoLn.next('.t994__video-btn').removeClass('playbtn_hide');
            videoLn.get(0).pause();
            videoLn.siblings('.t994__video-btn-mute').removeClass('mute_show'); 
        }
    };
});
setTimeout(function(){
    $('.t994__item:first video')[0].play();
}, 1000);

let slideline = document.querySelector('.t994__slidecontainer');
var observer = new MutationObserver(function (mutations) {
    mutations.forEach(function (mutation) {
        var newVal = $(mutation.slideline).prop(mutation.attributeName);
        if (mutation.attributeName === "data-slide-pos") { pauseVideo()};  
});
});
observer.observe( slideline , {  attributes: true});
});
</script>

<style>
.t994__video-wrapper { 
    width: 100%; 
    height: 100%;
    position:absolute;
}
.t994__video-btn , .t994__video-btn-mute {
    width: 60px;
    height: 60px;
    background-image: url(https://static.tildacdn.com/tild6465-3064-4962-b733-383664376338/Group_8.svg);
    position: absolute;
    left: 50%;
    top: 50%;
    background-size: contain;
    background-repeat: no-repeat;
    transform: translateX(-50%) translateY(-50%);
    cursor: pointer;
    z-index: 99;
    transition: all 0.3s ease-in-out;
}
.t994__video-btn-mute{
    display:none;
    background-image: url(https://static.tildacdn.com/tild3938-6263-4461-b031-363134353565/volume_1.svg);
}
.playbtn_hide{opacity:0}
.t994__video-btn:hover {transform: translateX(-50%) translateY(-50%) scale(1.1)}
.mute_show{display:block}
.mute_dis{display:none !important}

</style>