This problem was reported by blitz user (David Pagan):

In New C/C++ Project with Existing Makefile, step 3, "Build Actions"

This description:

"Specify the commands that maps the IDE's Build and Clean actions to shell
commands. The shell commands could be executing an existing Makefile like "make
-f Makefile" and "make -f Makefile clean", or running an existing shell script
like "/bin/sh build.sh" and "/bin/sh clean.sh". The Working Director is the
directory in where the commands are executed. If Working Directory is specified
as a relative path, it is relative to the Project Folder (see previous panel)."

is missing an explanation for the "Output" field.

What about multiple targets in the makefile that one might want with a project?
Like debug versus all, or something like that?

Notice that "Directory" is misspelled one time as "Director".