the idea is to NOT have hardware dmx sliders

why would I want to have ugly old school DMX hardware when I have a cool wolfmix?
Especially I don't get the idea of having a hardware slider 'and' linking it to the same dmx slider on the wolfmix
My idea is to have the possibility of a pure virtual slider on the wolfmix to control a single DMX value which is maybe particularly important for your setup.
This would give the possibility for a lightweight minimal hardware setup without additional DMX controllers. For example if I would have a simple setup with just 4 dmx sliders, I could also do that with the wolfmix instead of a 4-channel hardware controller.
Programming:
Seeing what wolfmix software already can do, I estimate this to be not to complicated.
It could be "masked" as a special wolfmix 1-channel fixture. this channel has a min max value like every channel.
If it is added to a group, some magic in the UI needs to happen to replace the FX buttons with the slider etc. The groups already have some logic in it to check if a FX button can be applied to that group so that would needed to be extended a little.
The group could use the standard configuration to allow it to act on flash, blackout etc like a normal group
Extra: Maybe the width of a group is wide enough to display two sliders in a group, therefore a max of 8 sliders could be shown on one screen.