What do the three timeline buttons to the right of the magnet do?

[shotcut]

These - as do most things - have tool tips that explain them a little bit - at least gives them a name. Move your mouse over one and wait one second.

Then, you can search here for “ripple” and the first result is from the documentation (not everything is documented but move to posts after that):

Timeline > Ripple All Tracks

Ripple All Tracks has the icon [image] in the Timeline toolbar and menu. Here is how it works: Only applies when ripple mode (Ripple trim and drop) is also on: [image] Or when using an edit operation that ripples: Cut or Remove (Ripple Delete). Only affects the clips after the moved clip on the same track. Affects footage after the original start position of the moved clip on other tracks (I use the term “footage” when I mean there is a time range and not strictly whole clips, and that often…