I am also waiting for this feature for almost 2 yrs now.
Before I bought the LA4, I looked at it online, saw the remote had input buttons and assumed that these did something with the LA4.
After adding a DAC3L, I now realize they can select inputs but still cannot select between XLR-1 and XLR-2 with discrete codes.
The best that can be done is to disable the LA4 other inputs with only the XLR-1 and XLR-2, select a disabled input that gets you to XLR-1 and add a second commend for the next. The two-code solution is not reliable and sometime family members miss one and the mains don't work because XLR-1 is selected, and XLR-2 must be selected for HT.
My wife, says, "Why can't I just have a system that works". I have no good answer for this with the LA4 in the system. XLR-2 is needed to drive the optimally drive the AHB2s in low gain, my processor cannot do this.
Fundamentally, this seems like a good Covid project to add some discrete commanded even if not present on the Benchmark remote.
They could also allow D1 - D4 to be mapped to XLRs in the setup which makes the existing remote (and codes) useful.
I spoke with Benchmark and the sales team gets it...
- Rich