Thanks Pierre for your feedback.
I just tried Ripple tool on another machine of mine with LinuxMint-18.1-Mate "Serena" and "Cin built Feb 17 2019 14:48:11" and it works exactly as shown in my screencasts added in my previous message.
Screencast: https://streamable.com/vdqj1
As I always said, when I drag to right (left arrow showed) the tool should trim from InPoint to the cursor position (where it is). More, Autos not follow edits, if you may attention at the screencast. Thanks.
Until Cin-20181231 version it was Okay for me (and even others NLE works so).

IgorBeg

Il 18/02/2019 15.33, Pierre autourduglobe ha scritto:

Here, under the last Cinelerra Infinity - built: Feb 17 2019 14:48:11

The Ripple, whether it is executed with the
Button-1 or Button-1 + Shift or Button-1 + Ctrl + Alt + ,

produces exactly the same result in terms of modifying the beginning of a timeline clip.

Pierre