Since you are in ANSYS 2020 R2, if u are aware that there is an deleat part in the beta flag options, when you enable this flag , an item will be enabled in the contextmenu if u right click on the your geomentry in any mechanical products, nThe second easy approach is to use spaceclaim, just right click in the tree and select delete it from there, anayways i am attachignthe images for ypur futher reference. nCheers, nRamn