GG/Phyllis, thanks for the build.
Seems to me that you are mixing five mode (Ripple, Rolling, Slip, Slide, Edge) with only the mouse's three buttons and left&right pointer. Really, it is not confortable and not intuitive, sorry. I think that the old behaviour (version 20181231) was really perfect and consistency.
/* ********************************** */
Version 20181231 (and before)
- Btn1= LMB= Drag all following edits= Ripple (total lenght is altered)
- Btn2= MMB= Drag only one edits= Rolling (total lenght is NOT altered)
- Btn3= RMB= Drag source only= Slip (total lenght is NOT altered)
/* ********************************** */
If you need a new key with ones of the three mouse button to have more edit mode, I could suggest (if you and other users agree with me) that the Shift key, to split the view in Compositor, is made available for the new modes and the split is always showed when a drag with the edge is done. I hope I explained myself well.
Thanks.

IgorBeg


Il 25/01/2019 23.27, Phyllis Smith ha scritto:
 OK, finally checked in the "expected" methods + more...
"roll" and "slip" tools (the fundamentals) in other editors, making it easy to remember.
What's the reason for this new change?
Yes, the last drag handle efforts did not live up to expectations.  My original motive was
to create a simplified set of edge operators.  It did that, but it only operated on single
edits.  I was quickly informed that a more standard set of edge operators should exist,
and they use more than one edge/edit.  So, I have re-worked with this in mind.  If there
are edge/edit functions that should exist, or should operate differently, let me know.

The new GIT checkin now has Ripple, Roll, Slip + Slide, Edge.  After reading the following, I think we got it right.

   https://www.videomaker.com/article/c3/13443-ripple-n-roll-slip-n-slide

Attached is a small text file covering all variations of all the cases with a key at the top.  Feedback needed and welcome.
An Ubuntu 16 build is at:
    https://www.cinelerra-gg.org/download/testing/cinelerra-5.1-ub16-x86_64-static.txz
Checkin also contains 12 plugins that now have Reset buttons !! from a contributor (not GG or me) and and bug fix.