As @Eyes2theSkies says, if it’s always the same cross fade time you can either use the group fade in/out times, or specify fade in/out times for specific clips.
Note that in the newest version fade in/out times are now independent from the tempo system and are set in seconds as opposed to bars (and now a maximum of 4 seconds). This is a safety feature as previously, clips wouldn’t fade out if the clock wasn’t running and be left stuck on!
The effect faders is a fun workaround, nice work @Eyes2theSkies!
@Enablers.inc does this give you the functionality you need? If not how would you see a system like this working? Currently the APC40 A-B slider is used for the tempo multiplier system. I must admit I can’t think of an A/B system that isn’t fiddly / complicated but I’ll mull it over.
Seb