One way to create a new suite, copy an old one
that is similar to a new one

  % setenv SIMILAR ei_xyz
  % setenv NEW ei_abc

  % ct mkdir  ${NEW}_SUITE_data
  % ct mkelem ${NEW}_SUITE.erl
  % cp ${SIMILAR}_SUITE.erl ${NEW}_SUITE.erl
  % cp ${SIMILAR}_SUITE_data/* ${NEW}_SUITE_data/
  % chmod ug+rw ${NEW}_SUITE_data/*
  % mv ${NEW}_SUITE_data/${SIMILAR}_test.c ${NEW}_SUITE_data/${NEW}_test.c
  % ct mkelem ${NEW}_SUITE_data/*

Now edit "${NEW}_SUITE.erl" and the files in "${NEW}_SUITE_data/".

To use a test suite you build it and put the result outside
ClearCase. Then you create soft links to the ClearCase elements.

  % setenv SRC /clearcase/otp/erts/lib/erl_interface/test
  % setenv DST /ldisk/test
  % cd $SRC
  % clearmake -V release TESTROOT=$DST
  % foreach f (`find . -type f`)
  foreach> \rm -f /ldisk/test/erl_interface_test/$f
  foreach> ln -s $SRC/$f $DST/erl_interface_test/$f
  foreach> end