Request to Replicate Shortcut Key Functionality in Keyboard Maestro for Creating New Cells in Google Colab

Hello, I would like to replicate the shortcut key function in Google Colab that creates a new cell. However, I'm facing an issue with creating a macro that can be triggered by pressing Ctrl+E on my keyboard. The desired behavior is for the macro to perform Ctrl+M B, which will then create a new cell in Colab. Currently, when I try to create an action in Keyboard Maestro using the "Type a Keystroke" function, it only registers Ctrl+M.

Unfortunately Keyboard Maestro cannot do this...