Change "show in folder" result


I am hoping to be able to change the way directories are opened in certain circumstances. It is mostly DropBox that is causing the thing I want to change.

I'll be working away, and I'll see a notification about a new file appearing in DropBox. If it's something I want to see, I'll click on the "show in folder" option.
This opens up DO, which is fine, but instead of adding a tab to the existing DO, it will open a new instance, with only 1 tab showing in the left panel.

So, my question is, can I make it just add a tab to the existing DO?


I believe all you need is this option turned on:

Yes, that works perfectly. Thanks for the quick reply.

I swear I looked through all the options but with such a level of configurability it is easy to miss something.