Does RB have an auto cross-fade function?

I've done Mac's version of things before with volume automation, but also have created a comp track (my preferred method) by copying desired sections from various take tracks and pasting them into the comp track. You can choose the cross-fade type (linear, sigmoid function, exponential rise/decay, etc.)

With my current DAW software, there's an option so that overlapping audio snippets can be automatically cross-faded You can choose the cross-fade type (linear, sigmoid function, exponential rise/decay, etc.) This is still a non-destructive method inside of the comp'ed track as well as the source tracks. The cross-fading in this particular application is basically a real-time effect like volume enveloping. Let me tell you, when I was editing down some lectures for my wife's Bible study group (condense 2 different 45 minute lectures to fit onto a 74 minute CD) the auto cross-fading function became the favorite tool in the toolbox. I could snip out pregnant pauses, coughs, sighs, repetitive segments, and pull the forward segments onto the tail end of what I had left in place and zap it with a cross-fade.

Comping in this fashion is also non-destructive (all of the original material is still there for whatever desired use exists) and offers one significant benefit over individual volume envelopes - it is an actual track. Can be post processed for anything one desires as a whole. Add reverb, EQ, dynamics, only to one track.

You can do that also with volume automation ala Mac's version if you mute all of the tracks except for the individual take tracks, then export the resulting audio output to a single track, then just use that exported track in your mix, going back and muting the tracks that were the source of the comp track.

Depending on the DAW, volume automation can take up a bit more resources than just dealing with a mixed down track. Something to keep in mind. I don't know how RB works with volume automation.