Hello Upfront team,
We are currently playing around with Upfront builder. One feature that is missing for us is the ability to add custom draggable elements. There has been a number of support requests for them in the past:
I would like to see this feature implemented in the feature, as it will make things for the end-user much easier than using shortcodes or widgets. I know that there is always the possibility to do custom development, but we would like to keep the ability to update Upfront and I am afraid that it's not all possible just using hooked actions.