This is more of a half-baked idea than a specific feature request.

I use Ardour. I use x42-eq as my go-to channel EQ. I have a Presonus Faderport 8.

The Faderport lets you edit controllable plug-in parameters, including for x42-eq. Presumably it's tapping into something in the LV2 layer. The way the x42-eq controls are presented in the Faderport seem to match the way they are presented in the Ardour generic controls for this plug-in.

The (slight) inconvenience is that the Faderport 8 only has 8 faders, but x42-eq appears to have 23 parameters that get mapped to faders. What would be ideal (for me, in this particular scenario with a Faderport 8, but not in the common case generally for everyone else in the world) would be to have the most generally useful parameters show up first.

The Faderport 8 workflow to edit the x42-eq on a channel is:

1. Select the channel
2. Edit Plugins
3. Select the x42-eq plug-in
4. Start moving faders around

Since there are 23 parameters mapped to faders, but only 8 faders, at this point you have to turn the pan/param knob back and forth to find the desired parameters. Which doesn't sound like such a big deal. But if you're working quickly and intuitively on a mix, imagine if the first 8 parameters were a four band EQ, with sweepable mid frequencies and adjustable bandwidth. Or in other words, the controls could be mapped out like this:

Fader 1: Gain 1
Fader 2: Frequency 2
Fader 3: Bandwidth 2
Fader 4: Gain 2
Fader 5: Frequency 3
Fader 6: Bandwidth 3
Fader 7: Gain 3
Fader 8: Gain 4

Instead of what they currently are:

Fader 1: Gain
Fader 2: Highpass Frequency
Fader 3: HighPass Resonance
Fader 4: Lowpass Frequency
Fader 5: LowPass Resonance
Fader 6: Lowshelf Frequency
Fader 7: Lowshelf Bandwidth
Fader 8: Lowshelf Gain

I realize this is a half-baked idea. I'm well aware. I'm not, even for a moment, suggesting that you just reorder the parameters for everyone, to benefit me with my particular control surface. I know better than that.

One other idea I had was to create my own local TTL file for fil4, but to change the LV2 index values around (or otherwise try and influence the order in which the controllable parameters appear). Would this even work? If it did, it seems like it might improve things for my idiosyncratic workflow. But how much trouble would I be asking for if I wanted to keep up with future changes to the plug-in? It seems like there are probably some traps for the unwary there.

Another possibility is some sort of configurable something-or-other to allow more generally creating local mappings that people could customize. That might be a whole lot of extra work and complexity for a feature that might not be used very often.

Or maybe there's something else that I haven't thought of.

Or maybe I should just do a bit more menu diving, or use the mouse.

Again, I really want to reiterate that I know this is kind of a strange request. Having been on the receiving end of requests that would make some strange workflow better for someone else at the expense of the general project, I know what you're probably thinking. So please interpret this as more of a report from the field, and some brainstorming about something that could be kind of cool, but only if it was possible to do so cleanly.

Finally, thanks for fil4, and the other x42 LV2 plug-ins. They are all uniformly fantastic!