They can carry tree platforms..... I accidentally discovered this when I went to my sap refillin station an accidentally swiped down... Then it carried the tree platform.... I then swiped down again and itchange camer angle... Like it wants to place it.... Swiped down again and it put it back ...... Now I use it to trans fer platforms from different trees to harvest sap..... Must have resin in inventory btw to work(tested that as well)....

Have not tested other structures yet....