k95 rgb Assign solid/gradient lighting effects to specific keys?

[Slashee the Cow]

So say I'm using a timer. And when it finishes I want to light up the whole board in a solid colour. Or just light up specific keys in a solid colour (like WASD, or the number row, or possibly just arbitrary keys would be nice), I know I can play a lighting effect at the end of the timer but that only seems to affect the key the timer is assigned to, for solid and gradient effects. Ripple and wave go across the whole board but they're not as noticeable and lighting up the whole board at once would be. Is there any way to do this?