@DanH yes I might have to think about a solution how to address individual subcomponents - maybe I can use the CSS selectors as they are already assigned to most components regardless of whether CSS is used, eg:
const var ft = Content.getComponent("Matrix"); ft.setChildTooltips({ ".search": "A search bar that can be used to filter modulation connections", "#intensity": "Changes the intensity of the modulation connection", ".plotter": "Displays a histogram of the modulation signal for this connection" });