Using the clip volume envelope to amplify rather than attenuate

Hi everyone,

I was trying to edit the volume envelope of a clip in Multitrack View, and I realised that the volume envelope really only allows you to *attenuate* the volume of a clip throughout its duration, not *amplify* it. In other words, you can only add points on the envelope that are *beneath* the +0dB line, thus decreasing the volume by so-many dB.

Is there a way to also vary to volume of a clip in the other direction, that is - to amplify it, in the Multitrack View?

Many thanks for any suggestions!