There are a number of ways of "selecting" multiple clips (including a Tool)
Lasso them as a group
Shift-Select them individualy to create a group selection
Ctrl-A select all of them ( targeted tracks)
and Keyboard short cuts too...
Select ....and move , nudge, cut, copy, paste, drag......
I figured out Contol A. How do I lasso?
Drag mouse with left click around the clips in the timeline