You are asking perhaps THE most fundamental virtues of VEgas. Once you have grasped this, then the World's your Lobster!

The following are only samples:

3 Clips

A - B - C

A = 4 seconds

B = 3 seconds

C = 10 seconds

At present A & B are on the timeline and take up a space equivalent to 7 seconds - yes?

OK.

Now I want to add C. But C is 10 seconds long. Hmmm ? What do I do?

Well I can move Event A left to increase the gap to 10 seconds OR Event B 10 seconds to the right to do the same OR Event A 5 seconds to the left and Event B 5 seconds to the right OR .. getting the picture?

Whatever happens if you want ALL 3 Events on the timeline then you HAVE too provide space for it. Period!

And that's the way I do it. If you can do it any other way ( Shuffle Edit; Auto Ripple; Trimmer Subclip creation; Insert empty Event notwithstanding. . ) then tell me?

Best regards

Grazie