Locations are at the top of the screenshots
Add Pickup to the E_SegmentType like shown below
Add Pickup Item variable type S_Item and Can Pick Up variables to the Master Build Part like shown in the image below
Add Pickup to the nodes shown.
Add the highlighted nodes in the image below
Copy the demolish node and connect it up like shown in the image below
Add pickup to the nodes shown in the image below
Add the bool to this node
Open the copied collapsed node in the BP_MasterRadialMenu and tick the bool like in the image below
Go to all the placeable build parts for example the campfire and in the class defaults set the item and count
Next copy close your project and copy the file linked below and put it in the textures/UI folder.
Next put this file in the blueprints/HUD folder