cm1-br4
cm2-br4
cm3-br4
Revert "cm3-br4"

This reverts commit ca567b3e0e8c1732d0f97e3519a0ecf2c6ffcf73.
merged br2 with br4 (br4 was reverted from cmt4 to cmt2 before)
cmt1-br2 after merge