You can change the static analysis settings by setting the following JVM argument in JAVA_MEM in the variables file. The file (has no file extension). This file is located in the <DTP_INSTALL>/bin directory:
true # or DC_JAVA_OPTS -Ddtp.widgets.compareViolationsAcrossBranches=true
When this mode is turned on, DTP will consider violations in different branches as the same violations.