MP of bricks.*is i-face.Any If contains sub:filt and RTR inside, points of int-on anywhere.Its first lvl of 1analogy(el. MTL).Midroles: ctrl, mnpltr.dig.uni-n: hlvl abst. layer of 1.Def as prog-le rtr`s-manip-rs above RTR`s and under oth. entityes ctrl.