Need one extra click to drop object to diagram

I am trying to drag a object from one component and drop that object to BPMN editor. While doing that I need to click one additional time in order to drop the object after having dragged it over the diagram and released the mouse button.
And also after dropping that I want to update property panel programmatically. How to achieve this. Please guide

Code inside draggable component -
dragStartHandler(dragEvent: DragEvent,botName) {
dragEvent.dataTransfer.setData(“activity”, activity-${});
const definition1 = {“type”: “bpmn:ServiceTask”, “name”: “some name”};
const definition = JSON.stringify(definition1);
const preview = document.createElement(“div”);
dragEvent.dataTransfer.setData(“activityDefinition”, definition);
preview.innerText = JSON.parse(definition).name;
position: absolute; height: auto; word-wrap: break-word; top: -500px; background- color: #EEE; border: 1px solid #111; border-radius: 8px; padding: 4px;
dragEvent.dataTransfer.setDragImage(preview, 0, 0);

Code inside receiving element i.e. diagram -
public onDrop($event) {
const json = $event.dataTransfer.getData(“activityDefinition”);
if (!json) return false;
const bpmnDefinition = JSON.parse(json);
const elementFactory = this.modeler.get(“elementFactory”);
const shape = elementFactory.createShape(bpmnDefinition);
const create = this.modeler.get(“create”);
create.start($event, shape);

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Thanks :heart: