Clicking and dragging across sequencer lights toggles the parameters.

[waterjump]

I'm having trouble getting this functionality to work. When you click a sequencer light, and drag across other lights of the same type (slide, active_step etc.) those lights get toggled as well. I've made a JS fiddle that works how I expect, but I cannot duplicate this in the app. https://jsfiddle.net/6xb00pjt/10/

In the app on branch 'feature/drag-to-light-up-many-sequence-lights' on commit 1f76841, You can click and drag across lights successfully, but just clicking a single light does not change the value of the checkbox.