Yes this is exactly the issue I was highlighting, all the synths should offer this functionality even if some of them did not as originals, to have a situation where some can and some cannot is less than useful for a collection, the midi learn function is one thing, the real way most performers on stage would want to operate patch changes is by using a master controller, for instance I use a Yamaha S90ES 88 Note weighted synth with advanced midi controller functions as does my Korg Triton Pro 76 Key, by setting up Master Patches the S90ES like a lot of other synths and dedicated Midi Controlllers such as those from Kurzweil and Roland offer the tools to set up Master Combinations, so for example you might have a internal sound layered with a external sound from say a hardware module or another keyboard and by setting up Patch numbers inside the Midi Master Configuration you can then send multiple patch changes out and where any patch lies outside the normal GM/GS numerical system you then use MSB and LSB commands in addition to select the desired sounds. The Result that you have complete control over all sounds internal and external which can be used individually or in combination with other sounds on other modules, boards or softsynths, all pretty simple stuff normally PROVIDING that the external synth understands these commands which Arturia seems to have omitted !!!
Any MIDI message that includes a variable value (such as MIDI note number or controller information) comprises, in addition to the MIDI channel address, two parts: one to say what sort of message it is, and the other to say what value is being transmitted. Because MIDI is an 8-bit system where seven of the eight bits are used to carry data values, the maximum range of a conventional MIDI message is from 0 to 127. This limit also applies to musical notes, which means MIDI can address a maximum of 128 different notes. Similarly, you can only address 128 different patches directly over MIDI, but with modern synths coming packed with more and more sounds, MIDI Bank Change messages are often used to access multiple sound banks, each containing up to 128 patches, However, some modern synths use both MSB and LSB Controllers to provide Bank Change commands.
As regards the Arturia way of doing things in the V Collection not having this standard functionality casts the collection into the realms of the home studio or hobbyist in the bedroom and in my view makes it less valuable as a product which can be used on stage live, maybe the intention of Arturia was the former who knows ?