The Select keyboard shortcut menu item in the Command Menu enables you to select a keyboard shortcut in the following dialog:
Here we have selected the Control and Shift modifiers and the F10 key to produce the command form {Ctrl Shift F10} for the Ctrl+Shift+F10 shortcut. Click the OK button or type Enter to add the command. If the glossary entry includes several commands, repeat the same procedure for each keystroke combination you want to add.