Heya! Thank you very much for using this plugin!
Well, it's possible to remove unused commands. However, it's not dependent by Ring Menu plugin directly. I elaborate. I think you've noticed you can customize command symbol and personal command symbols inside plugin parameters - I assume that you're knowing of what we're talking about since you already managed removing icons -.
However, Ring Menu command roster is taken by the reference window that is Window_MenuCommand itself. Take a look on this portion of code starting on line 302:
createMenuCommands() { this._referenceWindow = new Window_MenuCommand(new PIXI.Rectangle(0,0,1,1)); this._referenceWindow.refresh(); for(let i = 0; i < this._referenceWindow._list.length; i++) { const comm = this._referenceWindow._list[i] this._symbols.push(comm.symbol) this._names[comm.symbol] = comm.name let sp = new Sprite(); sp.alpha = this._globalAlpha let iconset = ImageManager.loadSystem("iconset"); iconset.addLoadListener(() => { sp.bitmap = iconset; sp.anchor.set(0.5) const iconIndex = !!_ring_menu_icons[comm.symbol] ? _ring_menu_icons[comm.symbol] : 16; const pw = ImageManager.iconWidth; const ph = ImageManager.iconHeight; const sx = (iconIndex % 16) * pw; const sy = Math.floor(iconIndex / 16) * ph; sp.setFrame(sx,sy,pw,ph) }) this.addChild(sp) } this._angleDistance = this.calculateAngleDistance() }
As you can see referenceWindow is Window_MenuCommand.
Said that, you have to apply your changes on Window_MenuCommand and then, eventually, mod the Ring Menu for your necessities. As far as I know this kind of interaction could be possible with some well-known plugins done by developers like VisuStella or if you're proficient in Javascript just editing the Window_MenuCommand class on your own in the part where commands are declared.
Hoping that this could help you at least a little,
Cheers!