I realise this was a long time ago but I imagine many FCP 7 editors will want to know this as few other platforms seem to do it and everyone loves it. It actually is possible in Premiere, and can be made to function identically to FCP 7 which is really great.
Ann, I believe the ‘muting’ that Zoe is referring to is actually not related to sound, though it uses the term ‘mute’. This is just Final Cut parlance, you’re actually muting video, not sound, that is basically switching on or off the visibility of particular video clip rather than the entire track the clip resides on. You can also use this technique to mute audio too, or both at once with linked selection, but primarily it’s usefulness is with video. It’s just an on off switch for clips on a timeline.
I’m using Premiere Pro CC, and I have my keyboard mapped to FCP 7 so I don’t know if this doesn’t work in previous versions, or if certain key commands are in use on the standard Premiere Keyboard that aren’t on mine. That said, here’s what you do:
The ‘muting’ we’re referring to as FCP users is actually much more logically named as ‘enable/disable’ a clip. You can access this via right clicking on a clip in the timeline. It’s also mappable to the keyboard. Change your keyboard preferences and search ‘enable’ you’ll find a setting for enabling or disabling clips on the timeline. Map this to ctrl + b and it’ll but just like the good old days again for FCP 7 users. Or map it to whatever you want, but I’m set in my ways so I like the familiar keyboard shortcuts.