You can play with shortcuts in the load editor as well. Here are some useful shortcuts:

• Ctrl + Shift + Enter/Return: Reloads the app
• CTRL + S: Saves the script code
• CTRL + H: Open
• ALT + F9: Show/hide the section panel on the left
• ALT + F10: Show/hide the Data connections panel on the right
• ALT + F11: Switch on/off the visualization of the command editor in fullscreen

You can find many other shortcuts at help.qlik.com by searching for "keyboard shortcuts" by way of keywords.