Thunar does not have the option of a prompt asking for confirmation when moving files to trash (this is, when pressing the Delete key). I want to add one.
The only way I can think of doing this by creating a new "Custom action", which accepts scripts and binaries (in the "Command" option, below):
Maybe I can create a script file that executes the delete after a confirmatory prompt. Once that is done, the rest is easy: just link that action to the Delete key.
But the truth is I have no idea how to start. I actually don't know if this is the best approach. Maybe there is a better one?