What does the lock symbol on the element mean, and why am I unable to interact with it?/ Is it necessary to upgrade my plan to access additional Drag and drop features?

The lock symbol on the element likely indicates that it is a premium or restricted feature that requires a paid plan to access. You may be unable to interact with it because your current plan does not include access to those features. To unlock and use additional Drag and drop features, you may need to upgrade to a higher-tier plan.