Tex files compiled independently in multi-file LaTeX project

[mnancel]

Hello,
I just installed this extension so perhaps I'm missing something. I am trying to write a scientific paper involving multiple tex files. The main tex file is in the root folder of my project, and the other ones in a tex/ subfolder.
Now, every time I edit one of those other tex files and save, I get an error of the form:

This is pdfTeX, Version [...] (TeX Live 2018) (preloaded format=pdflatex) restricted \write18 enabled.
entering extended mode
(./intro.tex
LaTeX2e <2018-04-01> patch level 2
Babel <3.18> and hyphenation patterns for 84 language(s) loaded.
./intro.tex:3: Undefined control sequence.
l.3 \section
{Introduction}
./intro.tex:3: ==> Fatal error occurred, no output PDF file produced!
Transcript written on intro.log.

The extension apparently tries to compile every saved file independently, so in order to compile my whole document I have to go back to the main tex file and save it as well, which does generate the correct pdf file with no error.

(Note that all of the tex files in the tex\ subfolder start with
%!TEX root = ../my_main_file.tex

Am I missing something?
Thanks a lot.

[mnancel]

Ok, I now realize that this is the default behavior when calling pdflatex on a non-main .tex file.

Let this be a features request then: could saving any file in the folder trigger the compiling of only the main .tex file?