I'm pretty used to winmerg when working on windows, and it has a really nice feature.
It adds an option to the explorer context menu that says 'compare to...' the first time you use it, and then it says 'compare' and 'change first folder'.
When you click on compare, it launches winmerge with both folder compared.
Is there some way to achieve the same in nautilus for meld?
Right now I'm running it form the command-line passing both directories as parameters