Ethernet interface Bandwidth limit

Hello,
in rb3011 in interface option I have bridge ports 1,2,3 ",

  1. WAN and 2,3 Bridge with it
    and I have set bandwidth limit on port 3

but today I bought rb1100ahx4 and do the same but in this router there is no option to set limit on port why ? and how can I set
IMG_20180304_223959.png