This thread to shows how many place we can have to move the clips, and group, on Timeline.

Timeline_Clips-SelectAndMove.ogv
https://streamable.com/xfkkc
source file: https://www.datafilehost.com/d/4d51f8a8
/* *** "Drag and Drop editing mode" *** */
- 07"...15": tried to drag with hold down LMB (Left Mouse Button ) and drag
- 16"...22": multiple selections with LMB and move (Drag&Drop) with LMB
- 23"...43": multiple selections with LMB and move with MMB (Middle Mouse Button), Mute&Past
/* *** "Cut and Past editing mode" *** */
- 51"...1'14": multiple selections with Ctrl+LMB and move with MMB, Mute&Past

Timeline_Group-SelectMakeAndMove.ogv
https://streamable.com/7880b
source file: https://www.datafilehost.com/d/3be67f3e
/* *** "Drag and Drop editing mode" *** */
- 07"...30": multiple selections with LMB, group the clips with Shift+LMB, and move (Drag&Drop) with LMB
- 49"...1'20": multiple selections with LMB, group the clips with Shift+LMB, and move with MMB, Mute&Past
/* *** "Cut and Past editing mode" *** */
- 1'34"...2'27": multiple selections with Ctrl+LMB, group the clips with Ctrl+Shift+LMB, select the group with Shift+LMB, and move with MMB, Mute&Past

Thanks.
IgorBeg

PS:
From Cinelerra-GG's MantisBT Feature #0000007
Screencasts by Cin-gg ver. Ub16 built Dec 22 2018 14:49:05