one more thing:
its supposed to be usefull to make "use current file for Test Run" for different files
for example, i have a project, that consist of number of files
i have about 4-5 files opened in SED (so i want to launch all project from any of them)
and as i open file from another project(that consists, say, from 1 file), it would be useful to be able to launch that file exactly
here is a picture:

i want to launch my main project's file, called "Agora.c" if "PlayerMain.c" or "PlayerPhys.c" is active... and to launch "shaderTest.c" if it is active
of course, "shaderTest.c" is marked in different way to show that exactly that file would launch if it is active
what are you thinking about it?