Block Property Data Transfer

I would like a prompt, similar to the prompt I receive when selecting the "turn into" option on a block, which allows me to select which object property I would like the data to be moved to, or the option to delete. Right now, I have to manually go back through each entry in my object to manually move the data to a newly created object property before deleting the original object property. For example, I currently have a Daily Journal object I created to capture my daily agenda, reflections, etc. However, I set it up with multiple block properties to create distinct sections. I would instead like those all to be in a single block object property. I created a new object property, but currently, if I go to delete the old block object properties it just prompts me to delete all previous data associated with that object property. The only current solution is to go through every single previous record and manually move the data to the new object property before deletion. I would like to instead see a pop up window that allows me to chose which object property I would like the data to be transferred to before deleting the object property.