Yeah, as usual anther NE3 bug. Here's a workaround.
In uhmnbar.4gl:
# LET editClearMN = NEW uAppMenu(title : Cle&ar\\tDelete",
LET editClearMN = NEW uAppMenu(title : Cle&ar\\tCtrl-D",
name : "editClearMN",
# parentMenu : editMN, accelerator : fgl_keyval("Del")
parentMenu : editMN, accelerator : fgl_keyval("Ctrl-D")
)