% % edit the content of value Body, Device, Type, and Program % sel@? { _\ !Edits \_Program !Program \_ProgSrc !ProgSrc "SetVed(true,false);" fork@)? { % % machine sub-tree % root? { % % sub-tree at root % &"SetCust(false,true,false);" } { % % sub-tree non-root % &"SetCust(true,false,false);" } ifelse } { % % top machine tree % &"SetCust(true,true,true);" } ifelse Help.! } if