You can't disable the toolbar, but you can have different security for source item and each relationship of this item type. Just go to relationship item type untick the "Use Src Access" checkbox and manage the Permission and Can Add based on your security logic
You can't disable the toolbar, but you can have different security for source item and each relationship of this item type. Just go to relationship item type untick the "Use Src Access" checkbox and manage the Permission and Can Add based on your security logic