I really rely on the Pencil Tool in Sony Sound Forge to remove clicks in my VOs... I want to move to Twisted Wave, but cannot seem to find this feature. Am I just missing it?

There is currently no pencil tool in TwistedWave, indeed. I understand this can be useful, and will think about it for a future update.

Note that an efficient way to remove clicks is to copy a piece of audio before the click, and paste it over the click, with TwistedWave's special paste, for instance.

This may sound as a bad workaround, but I once visited a user whose job was to restore the sound tracks of old movies, and remove clicks from the audio. Before TwistedWave, he used a software that allowed him to paste a piece of audio over the click, and it is after his suggestion that I added the special paste, which can also be customized to perform a small fade in and fade out for the paste to sound good.

Anyway, I understand a pencil tool can be useful in some cases, and will consider this.