Its not possible to copy files using drag and drop (holding Ctrl) within a folder, copying using Ctr+C, Ctrl+V is ok though so i dont see any reason do not be able to do this using drag and drop.
Works fine for me, and I have version 1.0.1.
(In reply to comment #1) > Works fine for me, and I have version 1.0.1. Are you sure you can create a copy with drag and drop with ctrl within the same folder ? I cant with my 1.0.1.
Ah! I missed the mention about the _same_ directory. Yes, I can reproduce that too, when you are DND over a folder you can type Ctrl/Ctrl+Shift/Shift to change the action to copy/create shortcut/move but this doesn't work when the mouse is over the white space (background) of the current directory.
*** Bug 6052 has been marked as a duplicate of this bug. ***
What happens with Thunar 1.5.1 is that copying by drag and drop into a folder is possible but after that the mouse keeps flickering and turns to the "wait" wheel. Xubuntu 12.04 32 bit with 4.10 and 4.12 ppa's
Don't see why this would be simpler than ctrl+c, ctrl+v. Closing.