diff -r 204dc77e5654 -r 7c4a63a02632 src/model.cpp
--- a/src/model.cpp	Sat Mar 07 01:25:37 2020 +0200
+++ b/src/model.cpp	Mon Mar 09 22:12:50 2020 +0200
@@ -117,7 +117,20 @@
 
 void Model::append(ModelObjectPointer&& object)
 {
+	const int position = static_cast<int>(this->body.size());
+	emit beginInsertRows({}, position, position);
 	this->body.push_back(std::move(object));
+	emit endInsertRows();
+}
+
+void Model::remove(int position)
+{
+	if (position >= 0 and position < signed_cast(this->body.size()))
+	{
+		emit beginRemoveRows({}, position, position);
+		this->body.erase(std::begin(this->body) + position);
+		emit endRemoveRows();
+	}
 }
 
 ldraw::Object* Model::objectAt(const QModelIndex& index)