Working on audio effects for multiple clips at once
You can lasso them on the timeline, right-click and choose &quot;remove attributes...&quot;  Then, make sure &quot;plugins&quot; is checked, and click &quot;apply.&quot;

After that, I will need to apply some effects to multiple tracks at once, but I believe this can be done by selecting all tracks and dragging and dropping the effect on them.

Yes, you can do that.  You can also apply effects to a whole track, which often saves a lot of mouse clicks, and helps you stay consistent.  There's a row of tiny plus signs on the mixer channel strips labeled &quot;effects&quot; where you go to do that.  It's also possible to group multiple tracks together, send that through a submix, and apply effects to the whole group at once.  So you could affect dialogue uniformly, for instance.