I am happy to announce that clang-format integration is almost finished.
There is a new submenu of local editor menu, "Reformat". In that there are Reformat and Reformat with options.. entries. Second one allows you to setup your formatting preferences...
Possible "underdevelopment" here is that we did not really had yet the time to fix installation of more exotic POSIX platforms to actually make sure that clang-format is installed in the host (apt-gets and rmps should work).