var scrollElement = document.getElementById("kt_modal_new_address_scroll");
var scrollObject = KTScroll.getInstance(scrollElement);
var scrollElement = document.getElementById("kt_modal_new_address_scroll");
scrollElement.scrollTop = 0;
<div class="scroll-y me-n7 pe-7" data-kt-scroll="true" data-kt-scroll-activate="{default: false, lg: true}" data-kt-scroll-max-height="auto" data-kt-scroll-dependencies="#kt_modal_new_address_header" data-kt-scroll-wrappers="#kt_modal_new_address_scroll" data-kt-scroll-offset="300px" >…</div>
console.log(scrollElement);
var scrollElement = document.getElementById("kt_modal_add_person_scroll");
console.log(scrollElement);
scrollElement.style.background = "red";
scrollElement.scrollTop = 0;
<div class="scroll-y me-n7 pe-7" data-kt-scroll="true" data-kt-scroll-activate="{default: false, lg: true}" data-kt-scroll-max-height="auto" data-kt-scroll-dependencies="#kt_modal_add_person_header" data-kt-scroll-wrappers="#kt_modal_add_person_scroll_x" data-kt-scroll-offset="300px" >…</div>
var scroll = document.querySelector("#kt_scroll_change_pos");
var btnTop = document.querySelector("#kt_scroll_change_pos_top");
var btnBottom = document.querySelector("#kt_scroll_change_pos_bottom");
btnTop.addEventListener("click", function (e) {
scroll.scrollTop = 0;
});
btnBottom.addEventListener("click", function (e) {
scroll.scrollTop = parseInt(scroll.scrollHeight);
});
<div id_= "kt_scroll_change_pos" class="scroll pe-5 mb-10" data-kt-scroll="true" data-kt-scroll-height="{default: "100px", lg: "300px"}">........</div>
show.bs.modal
to execute it from the modal shown.