Path Environment Variable
On Windows the PATH variable is a very special variable. It is specified as a number of directories separated by semicolons. When a command is started from the command line, the command processor searches the current directory, then examines each directory from the PATH variable. Once the executable is found the command processor starts it.
How to edit PATH variable
From the RapidEE's point of view the PATH variable doesn't differ from the other variables. So you can use it the same way as you do with other environment variables. RapidEE may be used to edit "System Variables" which will affect all users or "User Variables" which will affect just the current one:
Note that RapidEE highlights the wrong path. You can either fix it or delete the wrong item to keep your system clean and a bit faster.