I am testing the beta version of MIXXX 2.3.0 on Linux. And I am very glad that at last it became possible to synchronize the tempo for the sample cells! But I would also like to actively switch stereo channels for samples. So that you can select samples in the right or left channel.
You could do that by applying the Balance effect to a sampler.
It would be nice to add a balance function to each sampler slot.
Why? Just set the balance effect in an FX unit to the setting you want and assign that FX unit to all sampler slots it should affect. You can also use multiple FX units.