overleaf
Is there a way to define a different .tex file as the main .tex document in Overleaf v2? In Overleaf v1, this can be done through right clicking on a .tex file and choosing "Set as Main File". However, this option does not appear in Overleaf v2 for me.
You could also try using the standalone package and \includestandalone in main.tex:
\documentclass{article}
\usepackage{graphicx,lipsum}
\usepackage[mode=buildnew]{standalone}
\begin{document}
\lipsum[1]
\begin{figure}
\centering
\includestandalone{disc}
\caption{This is my disc}
\label{fig:mydisc}
\end{figure}
\lipsum[2]
\end{document}
Compiling main.tex will then trigger compiling disc.tex, produce disc.pdf, and use it in main.tex.
You can also download disc.pdf from the generated files list.
You could use \bibliography{ref} and locally set BIBINPUTS enviornment variable to the parent directory but perhaps simpler would be to use
\bibliography{\ifnum\pdfstrcmp{\jobname}{output}=0 ref\else ../ref\fi}
as Overleaf always sets the jobname to output
Best Answer
In Overleaf v2, open the project and hit menu. There's an option for changing the main file: