Currently in dolphin, when you click to open an executable file, it will execute it.  But sometime, that file is a script and I want to edit this script using my file edit.  And it may mess everything if this script contains some harmful command.

In fact, I will never try to execute something in dolphin, I will always open a terminal and execute in that.

There is a workaround for this:
http://askubuntu.com/questions/179155/how-to-force-dolphin-to-not-execute-executable-files
But I don't want to edit files under /usr.

In conclusion, I hope

1.  There is a setting for (a) always execute executable files (b) never execute executable files (c) pop a dialog to ask just like nautilus in gnome
2.  When click to open a executable file and (c) is chosen in the setting, dolphin will ask you to
a. execute it
b. edit it.
c. cancel
d. [checkbox] remeber my choice.

Reproducible: Always