A                                      CF01 CF02 CF03 CF04
     A                                      CF05 CF06 CF07 CF08
     A                                      CF09 CF10 CF11 CF12
     A                                      CF13 CF14 CF15 CF16
     A                                      CF17 CF18 CF19 CF20
     A                                      CF21 CF22 CF23 CF24
     A          R DUMMY                     ASSUME KEEP
     A                                  1  2 'dummy'
     A          R SCREEN                    INVITE OVERLAY