Oh, yeah, thanks! I had reversed the Run layout and Run all options.
Well, for "Explorer", I know it's the (probably copyright) name of the Windows Explorer but, in both MMF2 and Construct, it is an instance of that Windows Explorer. (I am right?...) So, I think it's the proper name. ...and anyway, I don't know what else to call it.
About the tool you're looking for, I'm really sorry, I don't know that. I am myself new to Construct (1 or 2 months) and I don't remember to have used such a thing in MMF2 neither. I think the best way to find how it works if it exists is to look on the Construct Wiki ( http://sourceforge.net/apps/mediawiki/c ... =Main_Page ) or in the forums.