Now that nautilus has tab support, it may be interesting to be able to open new nautilus instances in new tabs by default. Here's an example:

I already have a nautilus window opened and I click on the wastebasket icon in the panel: instead of always opening in a new window, I would like to have it open in a new tab instead.

This will help the new tab feature be used at its best: usb keys and mounted volumes which trigger nautilus would be opened in a new tab, saving space in the panel for instance.

As I said it should be a configurable option, so that the current behaviour can be keeped.