You can assign a custom keyboard shortcut to most of the tools and commands within Editor. For example, if you use the Crop tool, then you could assign the shortcut <Ctrl+Shift+L>. Then, each time you make a selection and press that shortcut, Editor performs the crop.
1. Click Snagit Editor > Snagit Button > Editor Options button > Custom button > Keyboard Shortcut button.
2. Within the Customize task pane, select a category.
5. Click Assign.