@alexiskeller Welcome to the Monday Community!
Off the top of my head, I can think of a few ways to either “mass” shift items from parent to subitems or a restructuring via a combination of other Monday features. BUT a few questions first:
- How many Clients and how many Companies are we talking about?
- What kind of information are you dealing with? Just the Client name or additional columns like phone, email etc?
Let me know and I might be able to offer some additional help.