In the last days i changed from ripple editing to normal editing 20 or 30 times during the day. And each time I didn't know in which modus I am.
If I was the programmer i would make a second dropbox-menu left to the lense menu (Ripple Edit Selection - Ripple Edit All - Normal Editing).
So I can see the mode and can change it quickly - for example by shortcut. And everyone would understand that. To change additionally the mouse pointer would be great.