As far as I can tell the Ok, Apply & Cancel aren't able to customised to have a shortcut via the customise command inside NX.
However you can cheat by doing the following:
1. Verify if you have the UGII_USER_DIR environment variable set.
Inside NX, Menu -> Help -> NX Log File
then search for UGII_USER_DIR
If you find the line:
No user customizations read from UGII_USER_DIR - environment variable is not set
you will need to set that variable.
If you find something like UGII_USER_DIR c:\SPLM\CUSTOM\nx_v10\user
Take note of the folder/path it has been set to.
1.A. From above, if the variable wasn't set, you will need to create it and specify a folder to user as your user dir.
Windows Control Panel -> System -> Advanced System Settings (Upper left) -> Environment Variables
Create a new user variable
Name: UGII_USER_DIR
Value: c:\SPLM\CUSTOM\nx_v10\user
Where c:\SPLM\CUSTOM\nx_v10\user is the full path to where you want to store all your user profile files (the one listed is what I use, modify to suit what you need).
2. Whether the variable was set, or you had to set it, in that folder specified, add a NEW subfolder called 'startup', if one does not exist.
example: c:\SPLM\CUSTOM\nx_v10\user\startup
3. In the 'startup' folder, save the attached menu file.
This menu file then adds the OK, Apply & Cancel buttons to the View Popup Menu, but also sets the hotkeys, F10 to Ok, F11 to Apply and F12 for Cancel.
By editing that menu file, you can change the shortcut hey that can be used.
Then you will need to use the mouse control software to assign the specified hotkey to the button you want to use.
Anthony Galante
Senior Support Engineer

NX3 to NX11 with almost every MR (24versions)